Ipso Ipd35s2-it035s Troubleshooting Mnl

Transcript

Troubleshooting Drying Tumblers 25 Pound Capacity 30 Pound Capacity 35 Pound Capacity Through Serial No. 0602004143 Refer to Page 5 for Model Numbers 1 SELEC TEMP T 2 INSER COIN T 3 PUSH START HIGH TEMP MED TEMP 25 C STAR T LOW TEMP NO HEAT T463PE1A www.comlaundry.com Part No. 70284701R2 September 2007 Table of Contents Section 1 – Safety Information ...............................................................3 Locating an Authorized Service Person ................................................4 Safety Warnings and Decals..................................................................5 Safety Precautions for Servicing Tumblers ...........................................5 Section 2 – Introduction ..........................................................................6 Model Identification ..............................................................................6 Serial Plate Location..............................................................................8 Customer Service...................................................................................8 Wiring Diagram.....................................................................................8 How a Tumbler Works ..........................................................................9 Section 3 – Troubleshooting..................................................................10 1. Tumbler Does Not Start ..............................................................11 2. Motor Does Not Start..................................................................12 3. Motor Overload Protector Cycles Repeatedly ............................13 4. Motor Runs But Cylinder Does Not Turn...................................14 5. Motor Does Not Stop ..................................................................15 6. Burner Does Not Ignite ...............................................................16 7. Burner Ignites and Goes Out Repeatedly....................................19 8. Burner Does Not Shut Off ..........................................................21 9. Clothes Do Not Dry ....................................................................22 10. Tumbler Overheating ..................................................................24 11. Burner Not Burning Properly......................................................25 12. Loading Door Opens During Operation......................................26 13. Cylinder Continues to Spin with Door Open ..............................27 14. Coin Does Not Fall into Coin Vault or Coin Drop Sensor Does Not Register that Coin Has Been Entered .........................28 Section 4 – Electronic Control Troubleshooting.................................29 15. Theory of Operation of Instant Electronic Ignition ....................29 16. Cannot Perform Infrared (IR) Communication...........................30 17. Coins Ignored When Entered......................................................31 18. Control Display – Door Open Light “On” ..................................32 19. Control Display – “Door” Error On Tumblers With 24 Volt EDC Controls..............................................................................33 20. Control Display – No Visible Display – OPL Microprocessor Models...............................................................34 21. Control Display – No Visible Display – Power On ....................35 22. Will Not Start – Electric – Manual Timer...................................36 23. Will Not Start – Electric – Rotary Coin Drop.............................37 24. Will Not Start – Gas – Manual Timer.........................................39 25. Will Not Start – Gas – Rotary Coin Drop...................................40 26. Will Not Start – Steam – Manual Timer .....................................42 27. Will Not Start – Steam – Rotary Coin Drop ...............................43 28. Will Not Start/Continue Running – EDC Control ......................45 29. Will Not Start/Continue Running – OPL Microprocessor Control ........................................................................................48 © Copyright 2007, Alliance Laundry Systems LLC All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or by any means without the expressed written consent of the publisher. 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. Will Not Run – Electric – Manual Timer ...................................51 Will Not Run – Electric – Rotary Coin Drop..............................54 Will Not Run – Gas – Manual Timer..........................................57 Will Not Run – Gas – Rotary Coin Drop....................................59 Will Not Run – Steam – Manual Timer......................................61 Will Not Run – Steam – Rotary Coin Drop ................................63 Will Not Heat – Electric – Manual Timer...................................65 Will Not Heat – Electric..............................................................67 Will Not Heat – Electric – Rotary Coin Drop (With and Without Time Delay Board) .......................................................69 Will Not Heat – Electric/Gas – OPL Microprocessor.................71 Will Not Heat – Gas – EDC Models...........................................74 Will Not Heat – Gas – Manual Timer.........................................76 Will Not Heat – Gas – Rotary Coin Drop...................................78 Will Not Heat – Steam – EDC Models .......................................80 Will Not Heat – Steam – Manual Timer .....................................82 Will Not Heat – Steam – OPL Microprocessor ..........................84 Will Not Heat – Steam – Rotary Coin Drop ...............................87 Section 5 – Micro Display Control Troubleshooting ..........................89 47. Coins Ignored When Entered......................................................89 48. Control Has No Display..............................................................90 49. Door Open Indicator ...................................................................92 50. Motor Will Not Start/Run ...........................................................94 51. Unit Will Not Heat (Gas) ............................................................98 52. Unit Will Not Heat (Steam) ......................................................101 53. Unit Will Not Heat (Electric)....................................................104 54. Error Codes ...............................................................................107 Gas Models Schematic ........................................................................................108 Connection Diagram .......................................................................109 Steam Models Schematic ........................................................................................110 Connection Diagram .......................................................................111 Electric Models Schematic ........................................................................................112 Connection Diagram .......................................................................113 Section 6 – NetMaster Troubleshooting ............................................114 55. No IR Communication ..............................................................114 56. Coins Ignored When Entered....................................................115 57. Control Has No Display............................................................116 58. Door Open Indicator .................................................................119 59. Motor Will Not Start/Run .........................................................122 60. Unit Will Not Heat (Gas) .........................................................128 61. Unit Will Not Heat (Steam) ......................................................132 62. Unit Will Not Heat (Electric) ...................................................136 2 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Section 1 Safety Information Throughout this manual and on machine decals, you will find precautionary statements (“CAUTION”, “WARNING”, and “DANGER”) followed by specific instructions. These precautions are intended for the personal safety of the operator, user, servicer, and those maintaining the machine. DANGER Danger indicates an imminently hazardous situation that, if not avoided, will cause severe personal injury or death. WARNING Warning indicates a hazardous situation that, if not avoided, could cause severe personal injury or death. In the interest of safety, some general precautions relating to the operation of this machine follow. WARNING • Failure to install, maintain and/or operate this product according to the manufacturer’s instructions may result in conditions which can produce serious injury, death and/or property damage. • Do not repair or replace any part of the product or attempt any servicing unless specifically recommended or published in this Service Manual and unless you understand and have the skills to carry out the servicing. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the product is properly grounded and to reduce the risk of fire, electric shock, serious injury or death. CAUTION W006R2 Caution indicates a hazardous situation that, if not avoided, may cause minor or moderate personal injury or property damage. Additional precautionary statements (“IMPORTANT” and “NOTE”) are followed by specific instructions. IMPORTANT: The word “IMPORTANT” is used to inform the reader of specific procedures where minor machine damage will occur if the procedure is not followed. NOTE: The word “NOTE” is used to communicate installation, operation, maintenance or servicing information that is important but not hazard related. 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 3 Safety Information IMPORTANT INFORMATION: During the lifetime of a tumbler, it may require service. The information contained in this manual was written and is intended for use by qualified service technicians who are familiar with the safety procedures required in the repair of a tumbler, and who are equipped with the proper tools and testing equipment. NOTE: The WARNING and IMPORTANT instructions appearing in this manual are not meant to cover all possible conditions and situations that may occur. It must be understood that common sense, caution and carefulness are factors which CANNOT be built into this tumbler. These factors MUST BE supplied by the person(s) installing, maintaining or operating the tumbler. Always contact your dealer, distributor, service agent or the manufacturer on any problems or conditions you do not understand. WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Never start the tumbler with any guards/ panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W240 Locating an Authorized Service Person Alliance Laundry Systems is not responsible for personal injury or property damage resulting from improper service. Review all service information before beginning repairs. Warranty service must be performed by an authorized technician, using authorized factory parts. If service is required after the warranty expires, Alliance Laundry Systems also recommends contacting an authorized technician and using authorized factory parts. WARNING Repairs that are made to your products by unqualified persons can result in hazards due to improper assembly or adjustments subjecting you or the inexperienced person making such repairs to the risk of serious injury, electrical shock or death. W007 CAUTION If you or an unqualified person perform service on your product, you must assume the responsibility for any personal injury or property damage which may result. The manufacturer will not be responsible for any injury or property damage arising from improper service and/or service procedures. W008 4 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Safety Information Safety Warnings and Decals SAFETY WARNINGS and decals have been provided in key locations to remind you of important precautions for the safe operation and maintenance of your tumbler. Please take the time to review these warnings before proceeding with service work. All decals have been designed and applied to withstand washing and cleaning. Decals should be checked periodically to be sure they have not been damaged, removed, or painted. Safety Precautions for Servicing Tumblers Prior to servicing tumbler: • Disconnect electrical service and “lockout” to prevent unintentional connection. • Shut off supply gas valve. • Allow machine to cool prior to servicing. After servicing tumbler: • Control/access panels must be reinstalled. • Motor/drive/belt guards must be reinstalled. • Contactor/junction/accessory box covers must be reinstalled. • Use a non-corrosive leak detection solution to check all pipe connections for gas leaks. DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS! • The loading door switch, lint door switch and airflow switch must be operating properly. 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 5 Section 2 Introduction Model Identification Information in this manual is applicable to these models: Gas Steam Electric 25 Pound CHD25G2-CA025L CHD25G2-CA025N CHD25G2-CT025L CHD25G2-CT025N CHD25G2-CU025L CHD25G2-CU025N DR25G2-BA025L DR25G2-BA025N DR25G2-BT025L DR25G2-BT025N DR25G2-BU025L DR25G2-BU025N HA025L HA025N HT025L HT025N HU025L HU025N IPD25G2-IT025L IPD25G2-IT025N LT025L LT025N PA025L PA025N PT025L PT025N PU025L PU025N SA025L SA025N ST025L ST025N SU025L SU025N UA025L UA025N UT025L UT025N UU025L UU025N YT025L YT025N CHD25S2-CT025S CHD25S2-CU025S DR25S2-BT025S DR25S2-BU025S HT025S HU025S IPD25S2-IT025S PT025S PU025S ST025S SU025S UT025S UU025S YT025S CHD25E2-CT025E CHD25E2-CU025E DR25E2-BT025E DR25E2-BU025E HT025E HU025E IPD25E2-IT025E PT025E PU025E ST025E SU025E UT025E UU025E YT025E 30 Pound CHD30G2-CA030L CHD30G2-CA030N CHD30G2-CT030L CHD30G2-CT030N CHD30G2-CU030L CHD30G2-CU030N HA030L HA030N HT030D HT030L HT030N HU030L HU030N IPD30G2-IT030L IPD30G2-IT030N LT030L LT030N LU030L LU030N PA030L PA030N PT030L PT030N PU030L PU030N SA030L SA030N ST030L ST030N SU030L SU030N UA030L UA030N UT030L UT030N UU030L UU030N YT030L YT030N CHD30S2-CT030S CHD30S2-CU030S HT030S HU030S IPD30S2-IT030S PT030S PU030S ST030S SU030S UT030S UU030S YT030S CHD30E2-CT030E CHD30E2-CU030E HT030E HU030E IPD30E2-IT030E LU030E PT030E PU030E ST030E SU030E UT030E UU030E YT030E 35 Pound AT035L AT035N CHD35G2-CA035L CHD35G2-CA035N CHD35G2-CT035L CHD35G2-CT035N CHD35G2-CU035L CHD35G2-CU035N DR35G2-BA035L DR35G2-BA035N DR35G2-BT035L DR35G2-BT035N DR35G2-BU035L DR35G2-BU035N HA035L HA035N HT035L HT035N HU035L HU035N IPD35G2-IT035L IPD35G2-IT035N LT035L LT035N LU035L LU035N PA035L PA035N PT035L PT035N PU035L PU035N SA035L SA035N ST035L ST035N SU035L SU035N UA035L UA035N UT035L UT035N UU035L UU035N YT035L YT035N AT035S CHD35S2-CT035S CHD35S2-CU035S DR35S2-BT035S DR35S2-BU035S HT035S HU035S IPD35S2-IT035S PT035S PU035S ST035S SU035S UT035S UU035S YT035S YU035S CHD35E2-CT035E CHD35E2-CU035E DR35E2-BT035E DR35E2-BU035E HT035E HU035E IPD35E2-IT035E LU035E PT035E PU035E ST035E SU035E UT035E UU035E YT035E YU035E NOTE: Control suffixes listed on next page. 6 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Introduction Includes models with the following control suffixes: 3O - DX4 OPL 3V - DX4 vended 3X - DX4 prep for coin BC – basic electronic, coin BL – basic electronic, central pay BX – basic electronic, prep for coin BY – basic electronic, prep for card CD – rotary coin drop CX – prep for coin drop 70284701 CY – prep for card DO - DMP OPL DV - DMP vended DX - DMP prep for coin EC – EDC electronic coin EX – EDC coin ready EY – EDC card ready MT – manual timer NC – NetMaster coin NR – NetMaster card NX – NetMaster coin ready NY – NetMaster card ready OM – OPL micro ZC – NetMaster coin network ZR – NetMaster card network ZX – NetMaster coin ready network ZY – NetMaster card ready network © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 7 Introduction Serial Plate Location When calling or writing about your product, be sure to mention model and serial numbers. Model and serial numbers are located on serial plate as shown. ANS 72152 CLOTHES DRYER. VOL II MODEL NO: TESTED FOR NATURAL & LIQUID PETROLEUM GASSES SERIAL NO: V-/ HERTZ/ AMPS, PHASE CGA 72 WIRES + GROUND TOTAL kW, MOTOR kW AMPLFIEDRER REQ'D CIRCUIT BREAKER: AMPS FAN OUTPUT: @MAX "WC STATIC PRESSURE EQUIPPED FOR: MIN SUPPLY PRESSURE: INPUT: "WC. BTU/hr @ GAS@ "WC MANIFOLD PRESS. MAX SUPPLY PRESSURE: "WC. BTU/cu.ft. MADE IN U.S.A./FABRIQUE AU ETATS UNIS/FABRICADO EN LOS ESTADOS UNIDOS 70051001 MODEL NO: SERIAL NO: TMB1823N Customer Service If literature or replacement parts are required, contact the source from which the machine was purchased or contact Alliance Laundry Systems at (920) 748-3950 for the name and address of the nearest authorized parts distributor. For technical assistance, call (920) 748-3121. Wiring Diagram The wiring diagram is located inside the contactor or junction box. Models starting Serial No. 0309____ or later will have the wiring diagram part number in the lower portion of the electrical data on the serial plate. 8 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Introduction How a Tumbler Works A tumbler uses heated air to dry loads of laundry. 1 When the motor is started, the exhaust fan pulls room temperature air in through the air intake at the rear of the tumbler and over the heat source (burner flame for gas, heating element for electric, and coil for steam). 2 The heated air moves into the cylinder, where it is circulated through the wet load by the tumbling action of the cylinder. 3 The air then passes through the lint filter, exhaust fan, and is vented to the outdoors. 1 2 3 T001CE3A 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 9 Section 3 Troubleshooting WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002 IMPORTANT: Refer to wiring diagram for aid in testing tumbler components. 10 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Troubleshooting 1. Tumbler Does Not Start Tumbler Does Not Start Is loading door open? Is the electrical power off or circuit breaker or fuse blown? Yes Check power supply, or replace fuses. Close loading door completely. Yes No Is the lint panel open? Yes Close and lock lint panel. No No Is there a blown fuse on tumbler? Check fuse (in junction box) and replace if necessary. Yes No Is there an incorrect amount of coins inserted into coin drop? (Rotary Coin Drop Models Only) Is drying timer in an off position (Manual Timer Models)? Yes Turn drying timer on. No Check that Yes proper amount of coins are inserted. Is the PUSH-TO-START button not properly activated (Manual Timer Models)? Yes Press and hold PUSH-TOSTART button for three seconds. No No Is coin drop inoperative? (Rotary Coin Drop Models Only) Yes Test coin drop and replace if inoperative. Is motor relay inoperative? Yes Test relay and replace if necessary. No TMB2181S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 11 Troubleshooting 2. Motor Does Not Start Motor Does Not Start Is the electrical power off or circuit breaker fuse blown? Is there broken, loose, or incorrect wiring? Yes Refer to wiring diagram. No Yes Check power supply, or replace fuses. Is the fan or fan motor binding? Yes Replace fan or motor assembly. No No Is the loading door switch or lint panel switch not closed or switch inoperative? Yes Close door, panel or test switch and replace if inoperative. Yes Refer to Adjustments Section for door switch adjustment. Is the transformer inoperative? Yes Test and replace if necessary. Yes Test relay and replace if inoperative. No No Is the start circuit not complete? Replace cylinder, bearing, rollers, or motor assembly. Yes No No Is the door switch improperly adjusted? Is the cylinder or cylinder motor binding? Yes Press and hold PUSH-TO-START button for three seconds. Is the motor relay inoperative? No No Is the motor inoperative? Yes Have motor tested and replace if inoperative. Is the airflow switch inoperative (Manual Timer and Rotary Coin Drop Models)? Yes Test switch, replace or adjust as required. No TMB2190S 12 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Troubleshooting 3. Motor Overload Protector Cycles Repeatedly Motor Overload Protector Cycles Repeatedly Yes Is voltage correct? No Is clothes load too large? Yes Refer to Installation Manual for electrical requirements. Remove part of load. No Is clothes cylinder binding? Yes Check cylinder for binding. No Yes Is wiring adequate? Check with local power company to ensure that wiring is adequate. No Yes Is make-up air adequate? Refer to Installation Manual for make-up air requirements. No Is there lint buildup around tumbler or poor maintenance? No Clean lint accumulation on and around the motors. Yes Is there broken, loose or incorrect wiring? Yes Refer to wiring diagram. TMB1904S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 13 Troubleshooting 4. Motor Runs But Cylinder Does Not Turn Motor Runs But Cylinder Does Not Turn Is cylinder belt broken? Yes Replace cylinder belt. No Has belt jumped off idler? Yes Replace belt on idler. No Is cylinder binding? Yes Check cylinder for binding. TMB2182S 14 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Troubleshooting 5. Motor Does Not Stop Motor Does Not Stop Is the door switch or lint panel switch not working properly? Yes Test switches and replace if inoperative. No Is coin drop not working properly? Yes Test coin drop and replace if inoperative. No Is wiring incorrect? Yes Refer to wiring diagram. No Is electronic control inoperative? Yes Replace electronic control. Yes Test relay and replace if inoperative. No Is motor relay inoperative? TMB2038S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 15 Troubleshooting 6. Burner Does Not Ignite Burner Does Not Ignite Is the airflow switch inoperative? Is there an improper or inadequate exhaust system? Yes Refer to Installation Manual for exhaust system requirements. No Are there blown fuses or Yes tripped circuit breakers in external electric supply line? Yes Reset cycle on microprocessor. Yes Is stove limit thermostat 1 inoperative? Is stove limit thermostat 2 inoperative? (Gas Models Only) No Test thermostat and replace if inoperative. No No Is motor relay inoperative? Yes Test relay and replace if inoperative. Are the orifices incorrect? No No 16 Yes Test thermostat 1 and replace if inoperative. No Is there an insufficient gas supply? No Is the cabinet thermostat inoperative? Test switch, replace or adjust as required. No Check/replace fuses or reset circuit breaker. No Is drying selector in the “Cool Down” portion of cycle? Yes Yes Test thermostat 2 and replace if inoperative. Open partially closed gas shut-off valve, or correct low gas pressure. Check manifold pressure and adjust to Yes pressure specified on serial plate. If pressure cannot be obtained, have your local gas company check main gas pressure. Tumbler is equipped for type of gas specified on serial Yes plate. If orifices are different from that specified on serial plate, obtain and install correct orifices. Continued on next page © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT TMB2183S-a 70284701 Troubleshooting 6. Burner Does Not Ignite (continued) Continued from previous page Is there lint buildup? Yes Clean lint compartment. Check damper for lint accumulation. Check ductwork for lint buildup. No Is there inadequate ductwork and make-up air? Refer to Installation Manual to ensure Yes that ductwork and make-up air openings are sized accurately. Yes Test switch and replace if inoperative. Is the lint panel not closed properly? Yes Unlock and open lint panel. Close panel ensuring a tight fit, then lock. No Is there broken, loose or incorrect wiring? No Are valve coils inoperative? Yes Refer to wiring diagram. Clearance should be 0.110 - 0.140 inch (2.79 - 3.55 mm). Check valve coils and replace if necessary. Yes No Check fuse (located in control box) and replace if necessary. Yes No Is gas shut-off valve in the closed position? No Yes No Is there a blown fuse on tumbler? No Is the airflow switch inoperative? Is there an improper igniter to burner tab clearance? Yes Open shutoff valve. No Is the ground wire from Instant Electronic Ignition (IEI) board not connected to ground terminal? No Yes Connect ground wire to ground terminal. Continued on next page TMB2183S-b 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 17 Troubleshooting 6. Burner Does Not Ignite (continued) Continued from previous page Is the IEI control inoperative? Yes Replace IEI control. Is Instant Electronic Ignition (IEI) control in safety lockout? Yes Reset IEI control by opening and closing loading door. (NonCE models only) Reset IEI by pressing reset button on back of unit. (CE models only) No No Is fan motor switch inoperative? Yes Replace motor. Is the thermistor inoperative? Yes Replace thermistor. No Is there an inoperative accumulator switch (rotary coindrop) or C1 relay (timer models)? No Yes Test and replace as needed. Is the temperature control or heat control relay inoperative? No Is wrong transformer configuration harness installed? NOTE: Ohm value should be 45000 at 80˚ F. Yes Yes Replace controls or heat control relay. Check incoming voltage and install correct configuration harness. No TMB2183S-c 18 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Troubleshooting 7. Burner Ignites and Goes Out Repeatedly Burner Ignites and Goes Out Repeatedly Is there insufficient gas pressure? Yes Check gas supply and pressure. Tumbler is equipped for type of gas specified on serial Yes plate. If orifices are different from that specified on serial plate, obtain and install correct orifices. Does tumbler have improper orifices? No No Is the cabinet thermostat inoperative? Yes Test thermostat and replace if inoperative. Is there broken, loose or incorrect wiring? Yes Refer to wiring diagram. No No Is stove limit thermostat 1 inoperative? Yes Test thermostat 1 and replace if inoperative. Is there excessive igniter to burner clearance? Yes Clearance should be 0.110 - 0.140 inch (2.79 - 3.55 mm). No No Is stove limit thermostat 2 inoperative? Yes Test thermostat 2 and replace if inoperative. Is there inadequate make-up air? Yes Refer to Installation Manual for make-up air requirements. No No Is the exhaust system improper or inadequate? No 70284701 Yes Refer to Installation Manual for exhaust system requirements. Is the thermistor inoperative? Yes Replace thermistor. No Continued on next page © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT TMB2184S-a 19 Troubleshooting 7. Burner Ignites and Goes Out Repeatedly (continued) Continued from previous page Is the control heater relay malfunctioning? Yes Replace control. No Are the back draft dampers locked in closed position? Yes Repair damper to working order. Yes Replace high tension lead. Yes Replace ignitor. No Is the high tension lead shorted? No Is the ignitor cracked? TMB2184S-b 20 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Troubleshooting 8. Burner Does Not Shut Off Burner Does Not Shut Off Are there impurities on gas valve seat, preventing valve from closing? Yes Replace gas valve. No Is wiring correct? Yes Refer to wiring diagram. No Is control heater relay malfunctioning? Yes Replace control. TMB1909S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 21 Troubleshooting 9. Clothes Do Not Dry Clothes Do Not Dry Is there enough heating time allocated for the load? Yes Start cycle again with enough time to dry load. Does the burner ignite and go out repeatedly? Refer to Burner Ignites and Goes Out Repeatedly flowchart. Yes No No Is the burner not igniting? Yes Refer to Burner Does Not Ignite flowchart. Is the drying selector improperly set? Set selector for higher setting. Yes No No Is there too much water in articles being dried? Is the voltage incorrect? Yes Remove excess water. No Is the clothes load too large? Yes Remove part of load. Maximum load is 25 pound dry weight (cotton load) for 25 pound tumbler, etc. No Is the exhaust system improper or inadequate? Yes Refer to Installation Manual for exhaust system equirements. Yes Refer to Installation Manual for electrical requirements. Yes Refer to Installation Manual for make-up air requirements. No Is there inadequate make-up air? No Is the exhaust duct to the outside blocked? Yes Clean duct to remove blockage. No Continued on next page No TMB2185S-a 22 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Troubleshooting 9. Clothes Do Not Dry (continued) Continued from previous page Is the lint screen clogged? Yes Clean/replace lint screen. No Is the thermistor inoperative? Yes Replace thermistor. No Is the exhaust damper binding? Yes Adjust damper so it turns freely. No Is the cylinder speed too fast? Yes Check belt is not riding on outer diameter of motor pulley. NOTE: 25 and 30 pound tumblers = 50 rpm 35 pound tumlers = 46 rpm TMB2185S-b 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 23 Troubleshooting 10. Tumbler Overheating Tumbler Overheating Does tumbler have incorrect main burner orifices? Is the thermistor sensor inoperative? Yes Obtain and install correct orifices. No Is the exhaust damper binding? No Is gas Yes pressure too high or low? Adjust gas pressure as specified on serial plate. Yes Refer to Installation Manual for make-up air requirements. No Is there lint buildup? Yes Clean lint compartment. Check damper for lint accumulation. Check ductwork for lint buildup. No Is the exhaust system restricted or inadequate? No Yes Remove obstruction or lint build up from exhaust ductwork. Refer to Installation Manual for exhaust system requirements. Yes Adjust damper so it turns freely. No Is the control heater relay malfunctioning? No Is the make-up air inadequate? Yes Check wiring to ensure thermistor is connected. Replace thermistor if necessary. Remove lint buildup on thermistor. Yes Replace control. No Are the safety covers missing, allowing cool air to enter tumbler? Yes Replace covers. No Is the lint screen clogged with fabric softener? Yes Replace lint screen. No Are there holes in cabinets due to foreign objects? Yes Repair/replace cabinet components. TMB1911S 24 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Troubleshooting 11. Burner Not Burning Properly Burner Not Burning Properly Is there lint/dirt in burner tube? Yes Disassemble burner and blow out the dirt. No No Yes No Is the exhaust duct restricted or blocked? Yes Replace airflow switch. No Is the gas Yes pressure too high or low? Does the tumbler have incorrect orifices? Is the airflow switch not functioning properly? Yes Check serial plate on back of tumbler for correct gas pressure. Tumbler is equipped for the type of gas specified on serial plate. If orifices are different from that specified on serial plate, obtain and install correct orifices. Is there inadequate make-up air? Yes Refer to Installation Manual for make-up air requirements. No Is there lint buildup around gas valve spud? Yes Clean off lint. Disassemble and clean exhaust system. No TMB1912S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 25 Troubleshooting 12. Loading Door Opens During Operation Loading Door Opens During Operation Is tumbler improperly leveled? Yes Refer to Installation Manual for leveling leg adjustment. Yes Remove part of load and restart tumbler. No Is clothes load too large? No Is loading door strike adjusted incorrectly? Yes Refer to Adjustments Section for strike adjustment. TMB1913S 26 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Troubleshooting 13. Cylinder Continues to Spin with Door Open Cylinder Continues To Spin With Door Open Is door switch inoperative? Yes Replace door switch. No Is motor relay inoperative? Yes Replace relay in control box. TMB2186S NOTE: All tumbler panels must be in place and on the machine for proper operation. 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 27 Troubleshooting 14. Coin Does Not Fall into Coin Vault or Coin Drop Sensor Does Not Register that Coin Has Been Entered Coin Does Not Fall Into Coin Vault or Coin Drop Sensor Does Not Register That Coin Has Been Entered Is proper electrical power supplied to coin drop? No Yes Is machine level? No Incorrect electrical connection may prevent coins from registering in coin drop. Refer to wiring diagram. Machines that are not level may prevent coins from following through required check stages of drop. Refer to Installation Manual for instructions on leveling machine. Yes Is coin drop clean? No Residue or lint build-up may prevent coins from following through required check stages of drop. Clean coin drop. Yes Is sensor operative? No Replace coin drop sensor. TMB1915S IMPORTANT: Never use oil to correct coin drop problem. Oil residue will prevent coins from rolling properly. IMPORTANT: Do not bend or damage mechanical parts within coin drop. 28 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Section 4 Electronic Control Troubleshooting WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002 15. Theory of Operation of Instant Electronic Ignition IMPORTANT: The Non-CE Marked Instant Electronic Ignition system will attempt to light the gas by sparking for approximately 12 seconds. If gas ignition does not take place within approximately 12 seconds, the Instant Electronic Ignition control will go into safety lockout and the valve will no longer open until Instant Electronic Ignition control is reset. To reset Instant Electronic Ignition control, remove power from control by opening and closing the tumbler door. If condition persists, check that the gas shut-off valve is in “on” position and that the gas service is properly connected. 70284701 If condition persists: a. Check resistance of high tension lead (approximately 1000 ohms/inch), and replace if not within resistance range. b. Check voltage present at valve. c. Check that machine is properly grounded. d. Check the igniter gap (gap should be .110 to .140 inch). e. Check that burner ports are not blocked or plugged under the igniter. © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 29 Electronic Control Troubleshooting 16. Cannot Perform Infrared (IR) Communication Single and stacked. Gas and electric heat. Single and three phase supply. Attempt to communicate with the electronic control from the microwand. Check the following: Is there a response of any kind from the electronic control? NO Aim microwand closer and try again. YES Does the control respond? NO - low battery on microwand. - is the IR window covered or blocked on the control. - if needed replace the electronic control. - is the IR cap properly attached to the microwand. YES Does the electronic control display E:OF or -C-? -C- Communication sequence checks out. E:OF Check the following: - IR communication disabled by manual programming. - Is the IR window on the control covered or blocked. - if needed, change electronic control board. T027D T027D 30 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 17. Coins Ignored When Entered Single and stacked units. Gas and electric heat. Single and three phase voltage. Start coin drop diagnostic tests. Does the display on the control increment properly? YES Exit diagnostic testing and reset control. (Prompting for vend price) NO Is connector H2 firmly seated in its receptacle? NO Reconnect and run diagnostic test again. NO Reconnect and run diagnostic test again. YES Replace coin drop or optic switch. YES Is the 3 pin connector between coin drop and control connected correctly? YES Are wires exiting coin drop optical sensor cracked or broken? NO Replace coin drop or optic switch. If problem still exists then replace the control. TMB1872S TMB1872S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 31 Electronic Control Troubleshooting 18. Control Display – Door Open Light “On” Single and stacked units. Gas and electric heat. Single and three phase supply. Reference voltage checks to transformer neutral. (6) (1) Is there voltage at H4-6 on the electronic control? YES Is there voltage at the input of the secondary fuse? NO Replace electronic control. Correct wiring between secondary fuse and transformer. YES NO (7) Is there power supplied to the unit? NO Is there voltage to output side of secondary fuse? NO Replace secondary fuse. Plug unit in and run it. YES YES (8) (2) Is there voltage to input of primary fuses? NO Correct wiring between primary fuses and power supply. Is there voltage to N.O. of door switch? NO Correct wiring between N.O. and output of secondary fuse. YES YES (9) (3) Is there voltage to output side of the primary fuses? NO Replace primary fuse(s). With door closed is there voltage to COM of door switch? NO Check for proper function of door switch replace if necessary. YES YES (10) (4) Is there voltage across terminals 1 & 2 of transformer primary? NO Correct wiring between primary fuses and transformer. Is there voltage to N.O. of lint drawer switch? NO Correct wiring between N.O. on lint drawer and COM on door switch. YES YES (11) (5) Is there voltage across terminals 2 & 3 of transformer secondary? NO Replace transformer. Is there voltage to COM of lint drawer switch with lint panel closed? NO Check for proper operation replace if necessary. YES YES Correct wiring between H4-6 of electronic control and COM of lint drawer switch. T028D T028D 32 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 4 6 5 7 8 9 2 10 11 3 1 TMB1788S 19. Control Display – “Door” Error On Tumblers With 24 Volt EDC Controls 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 33 Electronic Control Troubleshooting 20. Control Display – No Visible Display – OPL Microprocessor Models Gas, steam and electric heat. Single and three phase supply. Is there voltage supplied to the unit? NO Connect supply voltage and run unit. YES Is there voltage across fuse on OPL Micro? NO Replace OPL Micro. YES Note: Reference voltage to supply neutral. Replace fuse. Is there voltage to the input side of the primary fuse(s)? NO Correct wiring between primary fuse and supply. YES Is there voltage to the output side of the primary fuse(s)? NO Replace primary fuse. YES Is there voltage across the primary side of the transformer? NO Correct wiring between transformer and primary fuse. YES Is there voltage across 1 & 4 of transformer secondary? NO Replace transformer YES Is there voltage across terminals H3-3 & H3-4 on OPL Micro? NO Correct wiring between OPL Micro and transformer secondary. YES TMB1823S TMB1823S 34 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 21. Control Display – No Visible Display – Power On Single and stacked units. Gas and electric heat. Single and three phase supply. Is there voltage across H4-2 & H4-5 on the EDC control? YES Replace EDC Control. NO Is there voltage at the input of the secondary fuse? NO Correct wiring between secondary fuse and transformer. YES Is there power supplied to the unit? NO Plug unit in and run it. Is there voltage to output side of secondary fuse? NO Replace secondary fuse. YES YES Is there voltage to input of primary fuses? NO Correct wiring between primary fuses and power supply. Correct wiring between H4-2 and secondary fuse. YES Is there voltage to output side of the primary fuses? NO Replace primary fuse(s). YES Is there voltage across terminals 1 & 2 of transformer primary? NO Correct wiring between primary fuse and transformer. YES Is there voltage across terminals 2 & 3 of transformer secondary? NO Replace transformer. YES T025D T025D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 35 Electronic Control Troubleshooting 22. Will Not Start – Electric – Manual Timer Manual Timer, with and without time delay board. Single and stacked units. Single and three phase power supply. Is there power supply voltage coming to the tumbler? NO Connect power and run the cycle. YES Is there voltage at the primary side of the transformer at terminals 1 and 2? NO Change the primary Still no voltage fuse to the transformer. Correct wiring between power supply and transformer. For stacked units. YES Correct wiring between upper and lower pocket. Is there voltage at the secondary side of the transformer at terminal 2 and 3? NO Replace the transformer. NO Change the secondary fuse. YES Is there voltage to the output side of the secondary fuse? YES NOTE: White wires are transformer "neutral" Is there voltage to the N.O. terminal of the door switch? YES With door closed Is there voltage at COM of the door switch? Correct the wiring between the door switch and the secondary fuse. With lint panel closed is there votlage to N.O. terminal of the liint panel switch? YES Is there voltage to the COM of the lint panel switch? NO NO NO Correct the wiring between the secondary fuse and the transformer. NO YES NO Correct wiring between lint panel switch and door switch. Check for proper operation, replace the door switch if necessary. Refer to NO MOTOR RUN (run circuit.) YES Replace lint panel switch. T050D T050D 36 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 23. Will Not Start – Electric – Rotary Coin Drop Coin Drop with and without time delay boards. Single and stacked units. Single and three phase power supply. Is there power supply voltage coming to the unit? NO Connect power to the unit and run cycle. Is there voltage across coinmeter timer motor? NO Correct wiring between coinmeter timer motor and COM on switch A. YES YES Is the primary fuse good? Is there voltage at the primary side of the transformer at terminals 1 & 2? NO NO Replace fuse and run machine. YES Is there voltage at the secondary side of the transformer at terminal 2 and 3? NO Is there voltage at N.O. terminal of the door switch? Replace the transformer. Is the secondary fuse good? NO YES Correct wiring between secondary of transformer and fuse. YES Note: Reference voltage to transformer neutral. (White wire) Is there voltage to N.C. terminal of switch A on rotary coin drop? Replace coinmeter timer motor. NO Correct wiring between N.O. on door switch and COM on switch A. YES YES Is there voltage to the output side of the secondary fuse? NO YES Correct wiring between transformer and power supply. YES Does the coinmeter timer motor advance? NO Correct wiring between rotary coin drop and secondary fuse. NO Replace fuse and run machine. With the door closed is there voltage across the door switch? YES Check door switch for proper operation, replace if necessary. NO Is there voltage to the N.O. terminal of the lint panel switch? NO Correct wiring between N.O. on the lint panel switch and COM of door switch. YES YES Is the unit equipped with time delay boards? YES Continued on next page at step 1. With the lint panel closed is there voltage across the lint panel switch? YES Check lint panel switch for proper operation and replace if necessary. NO NO Note: The following checks are made with the vend price satisfied. Is there voltage on the COM terminal of switch A? NO Continued on next page at step 2. Replace switch A. Step 3 continuation. YES T075D T075D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 37 Electronic Control Troubleshooting 23. Will Not Start – Electric – Rotary Coin Drop (continued) STEP 1 STEP 2 Is there voltage to H1-2 on TMR1 board? YES NO Correct wiring between H1-2 and output of secondary fuse. Is there voltage at 2A of the start switch? YES Note: Following tests are conducted with vend price satisfied. With vend price satisfied is there voltage across N.C. & COM of switch A? YES Correct wiring between 2A of start switch and COM of lint panel switch. NO Replace switch A. 3 phase Does the unit have single phase or three phase power supply? NO Single phase Is there voltage across the timer motor? NO Correct wiring between timer motor and COM on switch A. Is there voltage at terminal 7 of the motor relay? YES Does coinmeter timer motor advance? NO Replace timer motor. NO Correct wiring between H1-6 and COM on switch A. Correct wiring between 7 of motor relay and COM of lint panel switch. NO YES Refer to NO MOTOR RUN (run circuit). YES Is there voltage across H1-6 & H1-8 of TMR1? YES Is there voltage across H1-2 & H1-3 of TMR1? Is there voltage at terminal 14 of the motor control relay? NO Correct wiring to terminal 14 of motor control relay. YES YES Replace TMR1. Refer to NO MOTOR RUN (Run Circuit). NO Is there voltage to N.O. of door switch? NO Correct wiring between N.O. of door switch and H1-3 of TMR1. YES Continue at step 3 on previous page. T076D T076D 38 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 24. Will Not Start – Gas – Manual Timer No motor run (start circuit) Manual Tumblers. Single and stacked units with and without time. delay Is there power supply voltage coming to the tumbler? NO Connect power and run the cycle. NO Change the primary Still no voltage fuse to the transformer. YES Is there voltage at the primary side of the transformer at terminals 1 and 2? YES Correct wiring between power supply and transformer. For stacked units. Is there voltage secondary side of the at the transformer at terminal 2 and 3? Correct wiring between upper and lower pocket. NO Replace the transformer. NO Change the secondary fuse. YES Is there voltage to the output side of the secondary fuse? YES NOTE: White wires are transformer "neutral" Is there voltage to the input side of the door switch? YES Is there voltage to the output side of the door switch? NO Is there voltage to the output side of the lint panel switch? YES Is there voltage to the input side of the lint panel switch? NO Correct the wiring between the door switch and the secondary fuse. NO Correct the wiring between the secondary fuse and the transformer. NO YES NO Correct wiring between lint panel switch and door switch. Replace the door switch. Refer to NO MOTOR RUN (run circuit). YES Replace lint panel switch. T041D T041D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 39 Electronic Control Troubleshooting 25. Will Not Start – Gas – Rotary Coin Drop Single & stacked tumblers with and without time delay. Is there power supply voltage coming to the unit? NO Connect power to the unit and run cycle. Is there voltage across coinmeter timer motor? NO Correct wiring between coinmeter timer motor and COM on switch A. YES YES Is the primary fuse good? Is there voltage at the primary side of the transformer at terminals 1 & 2? NO NO Replace fuse and run machine. Does the coinmeter timer motor advance? YES Is there voltage at the secondary side of the transformer at terminal 2 and 3? NO Is there voltage at N.O. terminal of the door switch? Replace the transformer. NO Correct wiring between N.O on door switch and COM on switch A. YES YES Is the secondary fuse good? Is there voltage to the output side of the secondary fuse? Replace coinmeter timer motor. YES Correct wiring between transformer and power supply. YES NO NO YES Correct wiring between secondary of transformer and fuse. YES Note: Reference voltage to transformer neutral. (White wire) Correct wiring Is there voltage to NO between rotary coin N.C. terminal of drop and secondary switch A on rotary fuse. coin drop? NO Replace fuse and run machine. With the door closed is there voltage across the door switch? YES Check door switch for proper operation, replace if necessary. NO Is there voltage to the N.O. terminal of the lint panel switch? NO Correct wiring between N.O. on the lint panel switch and COM of door switch. YES YES Is the unit equipped with time delay boards? YES Continued on next page at step 1. With the lint panel closed is there voltage across the lint panel switch? YES Check lint panel switch for proper operation and replace if necessary. NO NO Note: The following checks are made with the vend price satisfied. Is there voltage on the COM terminal of switch A? NO Continued on next page at step 2. Replace switch A. Step 3 continuation. T086D YES T086D 40 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 25. Will Not Start – Gas – Rotary Coin Drop (continued) STEP 2 STEP 1 Is there voltage to H1-2 on TMR1 board? YES NO Correct wiring between H1-2 and output of secondary fuse. YES NO Correct wiring between 2A of start switch and COM of lint panel switch. YES Note: Following tests are conducted with vend price satisfied. With vend price satisfied is there voltage across N.C. & COM of switch A? Is there voltage at 2A of the start switch? Replace switch A. Is there voltage at terminal 7 of the motor relay? NO Correct wiring between 7 of motor relay and COM of lint panel switch. NO YES Is there voltage across the timer motor? NO Correct wiring between timer motor and COM on switch A. Refer to NO MOTOR RUN (run circuit). YES Does coinmeter timer motor advance? NO Replace timer motor. NO Correct wiring between H1-6 and COM on switch A. YES Is there voltage across H1-6 & H1-8 of TMR1? YES Is there voltage across H1-2 & H1-3 of TMR1? YES Replace TMR1. NO Is there voltage to N.O. of door switch? NO Correct wiring between N.O. of door switch and H1-3 of TMR1. YES Continue at step 3 on previous page. T087D T087D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 41 Electronic Control Troubleshooting 26. Will Not Start – Steam – Manual Timer Single and stacked units with and without time delay boards. Is there power supply voltage coming to the tumbler? NO Connect power and run the cycle. NO Change the primary Still no voltage fuse to the transformer YES Is there voltage at the primary side of the transformer at terminals 1 and 2? YES Correct wiring between power supply and transformer. For stacked units. Correct wiring between upper and lower pocket. Is there voltage at the secondary side of the transformer at terminal 2 and 3? NO Replace the transformer. NO Change the secondary fuse. YES Is there voltage to the output side of the secondary fuse? YES NOTE: White wires are transformer "neutral" Is there voltage to the N.O. terminal of the door switch? YES Is there voltage to the COM terminal of the door switch? Correct the wiring between the door switch and the secondary fuse Is there voltage to the N.O. terminal of the lint panel switch? YES NO NO NO Correct the wiring between the secondary fuse and the transformer. NO Is there voltage to the COM terminal of the lint panel switch? YES NO Correct wiring between lint panel switch and door switch. Replace the door switch. Refer to NO MOTOR RUN (run circuit) . YES Replace lint panel switch. T016D T016D 42 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 27. Will Not Start – Steam – Rotary Coin Drop Single and stacked tumblers with and without time delay. NO Is there power supply to the unit? Connect power to the unit and run cycle. NO Is there voltage across coinmeter timer motor? Correct wiring between coinmeter timer motor and COM on switch A. YES YES Is the primary fuse good? Is there voltage at the primary side of the transformer at terminals 1 & 2? NO NO Replace fuse and run machine. Does the coinmeter timer motor advance? YES Correct wiring between transformer and power supply. YES Is there voltage at the secondary side of the transformer at terminal 2 and 3? NO Replace coinmeter timer motor. YES Is there voltage at N.O. terminal of the door switch? Replace the transformer. NO Correct wiring between N.O on door switch and COM on switch A. YES YES Is the secondary fuse good? Is there voltage to the output side of the secondary fuse? NO NO YES Correct wiring between secondary of transformer and fuse. YES Note: Reference voltage to transformer neutral. (White wire) Correct wiring Is there voltage to NO between rotary coin N.C. terminal of drop and secondary switch A on rotary fuse. coin drop? NO Replace fuse and run machine. With the door closed is there voltage across the door switch? YES Check door switch for proper operation, replace if necessary. NO Is there voltage to the N.O. terminal of the lint panel switch? NO Correct wiring between N.O. on the lint panel switch and COM of door switch. YES YES Is the unit equipped with time delay boards? YES Continued on next page column 1. With the lint panel closed is there voltage across the lint panel switch? YES Check lint panel switch for proper operation and replace if necessary. NO NO Note: The following checks are made with the vend price satisfied. Is there voltage on the COM terminal of switch A? NO Continued on next page column 2. Replace switch A. Step 3 continuation. YES T062D T062D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 43 Electronic Control Troubleshooting 27. Will Not Start – Steam – Rotary Coin Drop (continued) COLUMN 1 COLUMN 2 Is there voltage to H1-2 on TMR1 board? YES NO Correct wiring between H1-2 and output of secondary fuse. YES NO Correct wiring between 2A of start switch and COM of lint panel switch. YES Note: Following tests are conducted with vend price satisfied. With vend price satisfied is there voltage across N.C. & COM of switch A? Is there voltage at 2A of the start switch? Replace switch A. Is there voltage at terminal 7 of the motor relay? NO Correct wiring between 7 of motor relay and COM of lint panel switch. NO YES Is there voltage across the timer motor? NO Correct wiring between timer motor and COM on switch A. Refer to NO MOTOR RUN (run circuit). YES Does coinmeter timer motor advance? NO Replace timer motor. NO Correct wiring between H1-6 and COM on switch A. YES Is there voltage across H1-6 & H1-8 of TMR1? YES Is there voltage across H1-2 & H1-3 of TMR1? YES Replace TMR1. NO Is there voltage to N.O. of door switch? NO Correct wiring between N.O. of door switch and H1-3 of TMR1. YES Continue at step 3 on previous page. T063D T063D 44 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 28. Will Not Start/Continue Running – EDC Control Note: Test conducted with vend price satisfied and start button pressed. Is there voltage at H4-4 on the EDC control to transformer neutral? YES Single and stacked units. Gas, electric and steam heat. Single and three phase supply. Continued on next page. Is there voltage at the input of the secondary fuse? NO Correct wiring between secondary fuse and transformer. YES NO Is there power supplied to the unit? NO Plug unit in and run it. Is there voltage to output side of secondary fuse? NO Replace secondary fuse. YES YES Is there voltage to N.O. of door switch? Is there voltage to input of primary fuse(s)? NO Correct wiring between primary fuse(s) and power supply. YES NO Correct wiring between N.O. and output of secondary fuse. YES With door closed is there voltage to COM of door switch? NO Check for proper function of door switch replace if necessary. YES Is there voltage to output side of the primary fuse(s)? NO Replace primary fuse. Is there voltage to N.O. of lint drawer switch? YES NO Correct wiring between N.O. on lint drawer and COM on door switch. YES Is there voltage across terminals 1 & 2 of transformer primary? NO Correct wiring between primary fuse and transformer. Is there voltage to COM of lint drawer switch with lint panel closed? NO Check for proper operation replace if necessary. YES YES Is there voltage across terminals 2 & 3 of transformer secondary? YES NO Replace transformer. Is there voltage at H4-1 on the EDC control board? NO Correct wiring between H4-1 and COM of lint drawer switch. YES Replace EDC Control. T029D T029D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 45 Electronic Control Troubleshooting 28. Will Not Start/Continue Running – EDC Control (continued) Note: Tests conducted with vend price satisfied and start button pressed. Is there voltage across terminals 1 & 4 of the fan motor? Is there voltage on B terminal of motor control relay? NO Correct wiring between B and H4-4. NO Correct wiring between fan motor and motor control relay. YES YES Does the fan motor run? NO Replace fan motor. Three phase. Refer to Note on next page Is the unit equipped with single phase or three phase power? YES Is unit equipped with single phase or three phase power supply? Single phase Is there voltage to terminal 5 of the motor control relay? NO Correct wiring between terminal 5 and power supply. Three phase. Refer to Note on next page Is there supply voltage to L2 & L3 of motor control relay? YES Single phase NO Correct wiring between L2, L3 and supply. YES Replace motor control relay. YES Is there voltage to terminal 8 of motor control relay? NO Replace motor control relay. Is there voltage across terminals L2 & T2 and L3 & T3? YES NO Is there supply voltage to L1 and L2 of the motor control relay? NO Correct wiring between L1, L2 and power supply. Is there voltage at terminal 6 of motor control relay? YES NO Correct wiring between terminal 6 of motor control relay and supply. YES Is there votlage across L1 & T1 and L2 & T2? YES Replace motor control relay. Is there voltage at terminal 9 of motor control relay? NO Replace motor control relay. NO YES Continued on next page. T030D T030D 46 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 28. Will Not Start/Continue Running – EDC Control (continued) Is there voltage across terminals 1 & 4 of cylinder motor? NO Correct wiring between cylinder motor and motor control relay. YES Does the cylinder motor run? NO Replace cylinder motor. YES Motors are operational. Note: For high voltage three phase supply (380 volts or higher), the cylinder and fan motors are supplied by L1, L2, L3 through the motor relay terminals T1, T2, T3. Make the appropriate adjustments when doing voltage checks. T031D T031D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 47 Electronic Control Troubleshooting 29. Will Not Start/Continue Running – OPL Microprocessor Control Gas, steam and electric heat. Single and three phase supply. Reference voltage to supply neutral. Is power supplied to unit? NO Connect supply and run unit. YES Is there voltage to output of secondary fuse? NO Replace secondary fuse. YES Is there voltage to input of primary fuse(s)? NO Correct wiring between primary fuse and supply. YES Is there voltage to N.O. terminal of door switch? NO Correct wiring between N.O. terminal of door switch and secondary fuse. YES Is there voltage to output of primary fuse(s)? NO Change primary fuse. YES With door closed is there voltage to COM of door switch? NO Check for proper operation, replace door switch if necessary. YES Is there voltage across terminals 1 & 2 on primary of transformer? NO Correct wiring between transformer and primary fuse. YES Is there voltage to N.O. of lint panel switch? NO Correct wiring between N.O. of lint panel switch and COM of door switch. YES Is there voltage across terminals 2 & 3 of transformer secondary? NO Replace transformer. YES Is there voltage to COM of lint panel switch with lint panel closed? NO Check for proper operation and replace lint panel switch if necessary. YES Note: Reference voltage to transformer secondary neutral terminal 3. Is there voltage to input of secondary fuse? YES NO Correct wiring between secondary fuse and transformer. Is there voltage at terminal 8 of OPL Micro? NO Correct wiring between terminal 8 of OPL Micro and COM of lint panel switch. YES Continued on next page. T099D T099D 48 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 29. Will Not Start/Continue Running – OPL Microprocessor Control (continued) Tests conducted with cycle selected and start key pad activated. Is there voltage across terminals 1 & 4 of fan motor? Is there voltage at terminal 7 on OPL Micro? NO Correct wiring between fan motor and motor control relay. NO Replace OPL Micro. YES YES Is there voltage across terminals B & A of motor control relay for OM model and terminals 0 & 1 for RM models? Does the fan motor run? NO NO Replace fan motor. Correct wiring to motor control relay. YES YES Does the unit have reversing capabilities? Is unit supplied with single phase or three phase power? See cylinder rotation. Either forward or reverse. YES Single phase NO Three phase. Gas and steam. Refer to Note on next page. Single phase Reference voltage to supply neutral. Correct wiring Is there voltage to L1 NO between L1, L2 and and L2 of the motor power supply. control relay? Does the unit have single phase or three phase supply? Three phase. Gas and steam. Refer to Note on next page. Is there voltage to L2 and L3 on the motor control relay? YES Is there voltage to T1 and T2 of the motor control relay? NO Replace motor control relay. Is there voltage at terminal 5 on the motor control relay for OM models and terminal 2 for RM models? NO Correct wiring between motor control relay and power supply. Correct wiring between L2, L3 and power supply. NO Replace motor control relay. YES Is there voltage to T2 and T3 on the motor control relay? YES NO Is there voltage to terminal 6 of motor control relay? Correct wiring between terminal 6 motor control relay and supply voltage. NO YES YES Is there voltage across terminals 5 & 8 of the motor control relay for OM models and terminals 2 & 4 for RM models? NO YES Replace motor control relay. Is there voltage across terminals 6 & 9 of motor control relay? NO YES Replace motor control relay. Continued on next page. TMB1824S TMB1824S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 49 Electronic Control Troubleshooting 29. Will Not Start/Continue Running – OPL Microprocessor Control (continued) Is there voltage across terminals 1 & 4 of the cylinder motor? NO Correct the wiring between the cylinder motor and control relay. YES Does the cylinder motor run? NO Replace cylinder motor. YES Unit operational. NOTE: For three phase high voltage (380 volts or higher), the cylinder and fan motors are supplied L1, L2, L3 through the motor relay terminals T1, T2, T3. Make the appropriate voltage checks while doing trouble shooting. T009D T009D 50 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 30. Will Not Run – Electric – Manual Timer With and without time delay boards. Single and stacked units. Single and three phase power supply. Is there voltage at terminal C on the drying timer? NO Correct wiring between drying timer and lint panel switch. NO Is the unit equipped with a time delay board? YES YES NOTE: make sure drying timer is in the "on" position. Is there voltage at terminal B on the drying timer? NO Is there voltage across H1-6 & H1-8 on TMR1? Replace drying timer. NO Correct wiring to TMR1. NO Check for proper operation of airflow switch. YES Replace time delay board. YES YES ** Is there voltage across terminals 7 and 8 of CR1 relay? NO Is there voltage across terminals H1-4 & H1-8 on TMR2? Correct the wiring between CR1 relay and terminal B on drying timer. YES YES ** Is there voltage across terminal 3 and 5 of CR1 relay? YES Is there voltage across DOB contacts on TMR2? Replace CR1 relay. NO NO NOTE: This test to be made with push to start switch pressed in. Is there voltage across terminals 2A & 1A of push to start switch? YES ** Is there voltage across terminals 7 & 8 of CR2 relay? Replace push to start switch. NO Correct wiring between CR2 relay and airflow switch. YES NO NOTE: The N.O. contact is closed in the rest position due to the physical mounting of the switch. ** Is there voltage across COM and N.O. of the airflow switch? YES Is there voltage across terminals 5 & 3 on the CR2 relay? Adjust the airflow switch or replace if inoperative. YES Replace CR2 relay. NO NO CONTINUED ON NEXT PAGE. YES ** Is there voltage across coils B & A of the motor control relay? ** Tested with the start switch pressed in. NO Correct wiring between motor control relay and airflow switch. T051D T051D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 51 Electronic Control Troubleshooting 30. Will Not Run – Electric – Manual Timer (continued) Is there voltage across terminals 14 & 13 of motor control relay? Three phase Is this a single phase or three phase unit? Single phase ** Is there voltage across terminal 7 & 4 of the motor control relay? YES Replace motor control relay. NO Correct wiring between L1 and power supply. NO YES Replace motor control relay. NO Is there voltage to L1 of motor control relay? YES Is there voltage at terminal 5 on the motor control relay to supply neutral? NO Correct wiring between terminal 5 and supply voltage. Is there voltage to L2 of motor control relay? NO Correct wiring between L2 and power supply. YES YES Is there voltage across terminals 5 & 3 of the motor control relay? YES Replace motor control relay. Is there voltage across L1 to T1 and L2 to T2 on the motor control relay? YES Replace motor control relay. NO NO Is there voltage across terminals 1 & 4 of fan motor? NO Correct wiring between fan motor and contact 8 on the motor control relay. YES Note: Only for non time delay machines Is there voltage across terminals 3 & 5 of the fan motor centrifugal switch with the fan motor running? YES Replace fan motor. NO Does the fan motor run? NO Replace the fan motor. Continued on next page. YES ** Tested with the start switch pressed in. TMB1825S TMB1825S 52 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 30. Will Not Run – Electric – Manual Timer (continued) Three phase. Is unit single phase or three phase? Is there voltage to L2 on motor control relay? NO Correct wiring between terminal 6 and power supply. Is there voltage to L3 on motor control relay? YES Is there voltage across terminal 6 & 9 of the motor control relay? NO Correct wiring between motor control relay and supply. YES YES Replace motor control relay. NO Is there voltage at terminals 1 & 4 of the cylinder motor? Correct wiring between motor control relay and supply. YES Single phase. Is there voltage to terminal 6 on the motor control relay? NO Is there voltage across L2 to T2 and L3 to T3 on the motor control relay? YES Replace motor control relay. NO NO Correct wiring between cylinder motor and contact 9 on the motor control relay. YES Does the cylinder motor run? NO Replace the cylinder motor. YES The cylinder and fan motors are operational. T053D T053D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 53 Electronic Control Troubleshooting 31. Will Not Run – Electric – Rotary Coin Drop Single and Stack with and without time delay. Single and three phase power. ** Is there voltage across terminals 7 & 8 of CR2 relay? ** Tested with vend price satisfied and with start switch pressed in. ** Is there voltage across terminals 2A & 1A of push to start switch? YES Replace push to start switch. NO Correct wiring between CR2 relay and airflow switch. YES ** Is there voltage across terminals 5 & 3 on the CR2 relay? NO Note: Reference voltage to transformer neutral. Is there voltage to COM of the airflow switch? NO Correct wiring between COM of airflow switch and 1A on start switch. YES NO ** Is there voltage across the coil of the motor control relay? YES NOTE: The N.O. contact is closed in the rest position due to the physical mounting of the switch. ** Is there voltage across COM and N.O. of the airflow switch? YES Replace inoperative switch or correct airflow vane operation. Replace CR2 relay. NO Correct wiring between motor control relay and airflow switch. YES Is unit single phase or three phase? Three phase Refer to note. Continued on next page COLUMN 2. NO Single phase NO Is the unit equipped with a time delay board? ** Is there voltage across terminal 7 & 4 of the motor control relay? YES Replace motor control relay. YES NO ** Is there voltage across terminals H1-4 & H1-8 on TMR2? NO Check for proper operation of airflow switch and check wiring. Is there voltage at terminal 5 on the motor control relay? NO Correct wiring between terminal 5 and supply voltage. YES YES ** Is there voltage across DOB contacts on TMR2? YES Replace time delay board. Continued on next page COLUMN 1. NO ** Tested with the start switch pressed in. T072D T072D 54 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 31. Will Not Run – Electric – Rotary Coin Drop (continued) COLUMN 2 COLUMN 1 Is there voltage across terminal 5 & 8 of the motor control relay? YES Is there voltage across terminal 14 & 13 of motor control relay? Replace motor control relay. Replace motor control relay. NO Correct wiring between L1, L2 and supply. NO Replace motor control relay. NO NO Is there voltage across terminals 1 & 4 of fan motor? YES Correct wiring between fan motor and contact 8 on the motor control relay. NO Is there voltage to L1 & L2 terminals on motor control relay? YES YES YES Does the fan motor run? NO Is there voltage to T1 & T2 terminals on motor control relay? Replace the fan motor. YES For units without time delay boards. Is there voltage across terminals 3 & 5 of the fan motor centrifugal switch with the fan motor running? YES Replace fan motor. NO Is the machine supplied with single phase or three phase power? NOTE: For Hi voltage three phase supply (380volts or higher), the cylinder and fan motor are supplied L1, L2, L3 through the motor relay terminals T1, T2, T3. Make the appropriate adjustments when doing trouble shooting. Is there voltage to L2 & L3 terminals on motor control relay? Three phase Refer to Note. NO Correct wiring between supply and L2 & L3 terminals. YES Is there voltage across L2 to T2 and L3 to T3? YES Replace motor control relay. NO Replace cylinder motor. Single phase NO Is there voltage to terminal 6 on the motor control relay? YES Continued on next page COLUMN 1. NO Correct wiring between terminal 6 and power supply. Does the cylinder motor run? YES CYLINDER AND FAN MOTORS ARE OPERATIONAL. T073D T073D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 55 Electronic Control Troubleshooting 31. Will Not Run – Electric – Rotary Coin Drop (continued) COLUMN 1 Is there voltage across terminals 6 & 9 of motor control relay? YES Replace motor control relay. NO Is there voltage at terminals 1 & 4 of the cylinder motor? NO Correct wiring between cylinder motor and contact 9 on the motor control relay. YES Does the cylinder motor run? NO Replace the cylinder motor. YES The cylinder and fan motors are operational. T074D T074D 56 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 32. Will Not Run – Gas – Manual Timer No motor run (run circuit). Single and stacked units with and without time delay boards. Is there voltage at terminal c on the drying timer? NO Correct wiring between drying timer and lint panel switch. NO YES Is the unit equipped with a time delay board? YES NOTE: make sure drying timer is in the “on” position. Is there voltage at terminal b on the drying timer? NO Is there voltage across H1-6 & H1-8 on TMR1? Replace drying timer. NO Correct wiring to TMR1. NO Check for proper operation of airflow switch. YES Replace time delay board. YES YES ** Is there voltage across terminals 7 and 8 of CR1 relay? NO Is there voltage across terminals H1-4 & H1-8 on TMR2? Correct the wiring between CR1 relay and terminal b on drying timer. YES YES ** Is there voltage across terminal 3 and 5 of CR1 relay? YES Is there voltage across DOB contacts on TMR2? Replace CR1 relay. NO NO NOTE: This test to be made with push to start switch pressed in. Is there voltage across terminals 2A & 1A of push to start switch? YES ** Is there voltage across terminals 7 & 8 of CR2 relay? Replace push to start switch. NO Correct wiring between CR2 relay and airflow switch. YES NO NOTE: The N.O. contact is closed in the rest position due to the physical mounting of the switch. ** Is there voltage across COM and N.O. of the airflow switch? YES Is there voltage across terminals 5 & 3 on the CR2 relay? Adjust the airflow switch or replace if inoperative. YES Replace CR2 relay. NO NO ** CONTINUED ON NEXT PAGE. YES ** Is there voltage across coils B & A of the motor control relay? NO Correct wiring between motor control relay and airflow switch. Tested with the start switch pressed in. T042D T042D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 57 Electronic Control Troubleshooting 32. Will Not Run – Gas – Manual Timer (continued) ** Is there voltage across terminal 7 & 4 of the motor control relay? YES NO Does the fan motor run? NO Replace the fan motor. YES Note: Only for non time delay machines Replace motor control relay. Is there voltage across terminals 3 & 5 of the fan motor centrifugal switch with the fan motor running? YES Replace fan motor. NO Is there voltage at terminal 5 on the motor control relay to to supply neutral? NO Correct wiring between terminal 5 and supply voltage. Is there voltage to terminal 6 on the motor control relay and supply neutral? NO Correct wiring between terminal 6 and power supply. YES YES Is there voltage across terminal 5 & 8 of the motor control relay? YES Replace motor control relay. Is there voltage across terminal 6 & 9 of the motor control relay? YES Replace motor control relay. NO NO Is there voltage across terminals 1 & 4 of fan motor? NO Correct wiring between fan motor and contact 8 on the motor control relay. Is there voltage at terminals 1 & 4 of the cylinder motor? NO Correct wiring between cylinder motor and contact 9 on the motor control relay. YES YES Does the cylinder motor run? NO Replace the cylinder motor. YES ** Tested with the start switch pressed in. The cylinder and fan motors are operational. T043D T043D 58 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 33. Will Not Run – Gas – Rotary Coin Drop Single and stack with and without time delay. ** ** Tested with start switch pressed in. ** Is there voltage across terminals 2A & 1A of push to start switch? YES Replace push to start switch. Is there voltage across DOB contacts (H1-4 and H1-5) on TMR2? YES Replace time delay board. NO NO Note: Reference voltage to transformer neutral. Is there voltage to COM of the airflow switch? NO Correct wiring between COM of airflow switch and 1A on start switch. YES NOTE: The N.O. contact is closed in the rest position due to the physical mounting of the switch. ** Is there voltage across terminals 7 & 8 of CR2 relay? NO Correct wiring between CR2 relay and airflow switch. YES ** Is there voltage across terminals 5 & 3 on the CR2 relay? YES Replace CR2 relay. ** Is there voltage across COM and N.O. of the airflow switch? YES Adjust the airflow switch or replace if inoperative. NO ** Is there voltage across coils B & A of the motor control relay? NO NO Correct wiring between motor control relay and airflow switch. YES Is the unit equipped with a time delay board? NO ** Is there voltage across terminal 7 & 4 of the motor control relay? YES YES Replace motor control relay. NO Is there voltage across H1-6 & H1-8 on TMR1? NO Correct wiring to TMR1. Is there voltage at terminal 5 on the motor control relay? YES Correct wiring between terminal 5 and supply voltage. YES ** Is there voltage across terminals H1-4 & H1-8 on TMR2? NO NO Check for proper operation of airflow switch and check wiring. CONTINUED ON NEXT PAGE. YES ** Tested with the start switch pressed in. T088D T088D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 59 Electronic Control Troubleshooting 33. Will Not Run – Gas – Rotary Coin Drop (continued) Is there voltage across terminal 5 & 8 of the motor control relay? YES Replace motor control relay. Is there voltage at terminals 1 & 4 of the cylinder motor? NO Correct wiring between cylinder motor and contact 9 on the motor control relay. YES NO Is there voltage across terminals 1 & 4 of fan motor? NO Correct wiring between fan motor and contact 8 on the motor control relay. Does the cylinder motor run? NO Replace the cylinder motor. YES YES Does the fan motor run? NO Replace the fan motor. YES Replace fan motor. The cylinder and fan motors are operational. YES Is there voltage across terminals 3 & 5 of the fan motor centrifugal switch with the fan motor running? NO Is there voltage to terminal 6 on the motor control relay? NO Correct wiring between terminal 6 and power supply. YES Is there voltage across terminal 6 & 9 of the motor control relay? YES Replace motor control relay. NO ** Tested with the start switch pressed in. T089D T089D 60 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 34. Will Not Run – Steam – Manual Timer Single and stacked units with and without time delay board. NO Is there voltage at terminal C on the drying timer? NO Correct wiring between drying timer and lint panel switch. Is the unit equipped with a time delay board? YES YES NOTE: Make sure drying timer is in the "on" position. Is there voltage at terminal B on the drying timer? NO Is there voltage across H1-6 & H1-8 on TMR1? NO Correct wiring to TMR1. NO Check for proper operation of airflow switch. Replace drying timer. YES YES ** Is there voltage across terminals 7 and 8 of CR1 relay? NO Is there voltage across terminals H1-4 & H1-8 on TMR2? Correct the wiring between CR1 relay and terminal B on drying timer. YES YES ** Is there voltage across terminal 3 and 5 of CR1 relay? YES Is there voltage across DOB contacts on TMR2? Replace CR1 relay. YES Replace time delay board. NO NO NOTE: This test to be made with push to start switch pressed in. Is there voltage across terminals 2A & 1A of push to start switch? YES ** Is there voltage across terminals 7 & 8 of CR2 relay? Replace push to start switch. NO Correct wiring between CR2 relay and airflow switch. NO YES NOTE: The N.O. contact is closed in the rest position due to the physical mounting of the switch. ** Is there voltage across COM and N.O. of the airflow switch? YES Is there voltage across terminals 5 & 3 on the CR2 relay? Adjust the airflow switch or replace if inoperative. YES Replace CR2 relay. . NO NO CONTINUED ON NEXT PAGE. ** YES ** Is there voltage across B & A of the motor control relay? NO Tested with the start switch pressed in. Correct wiring between motor control relay and airflow switch. T017D T017D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 61 Electronic Control Troubleshooting 34. Will Not Run – Steam – Manual Timer (continued) ** Is there voltage across terminal 7 & 4 of the motor control relay? YES NO Does the fan motor run? Replace the fan motor. YES NO Note: Only for non time delay machines Replace motor control relay. Is there voltage across terminals 3 & 5 of the fan motor centrifugal switch with the fan motor running? YES Replace fan motor. NO Is there voltage at terminal 5 on the motor control relay to to supply neutral? NO Correct wiring between terminal 5 and supply voltage. Is there voltage to terminal 6 on the motor control relay and supply neutral? NO Correct wiring between terminal 6 and power supply. YES YES Is there voltage across terminal 5 & 8 of the motor control relay? YES Replace motor control relay. Is there voltage across terminal 6 & 9 of the motor control relay? YES Replace motor control relay. NO NO Is there voltage across terminals 1 & 4 of fan motor? NO Correct wiring between fan motor and contact 8 on the motor control relay. Is there voltage at terminals 1 & 4 of the cylinder motor? NO Correct wiring between cylinder motor and contact 9 on the motor control relay. YES YES Does the cylinder motor run? NO Replace the cylinder motor. YES ** Tested with the start switch pressed in. The cylinder and fan motors are operational. T018D T018D 62 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 35. Will Not Run – Steam – Rotary Coin Drop Single and stack with and without time delay. ** ** Tested with start switch pressed in and vend satisfied. ** Is there voltage across terminals 2A & 1A of push to start switch? YES Is there voltage across DOB contacts on TMR2? YES Replace time delay board. Replace push to start switch. NO NO Note: Reference voltage to transformer neutral. Is there voltage to COM of the airflow switch? NO Correct wiring between COM of airflow switch and 1A on start switch. ** Is there voltage across terminals 7 & 8 of CR2 relay? NO Correct wiring between CR2 relay and airflow switch. YES YES NOTE: The N.O. contact is closed in the rest position due to the physical mounting of the switch. ** Is there voltage across COM and N.O. of the airflow switch? YES Adjust the airflow switch or replace if inoperative. ** Is there voltage across terminals 5 & 3 on the CR2 relay? Replace CR2 relay. NO ** Is there voltage across B & A of the motor control relay? NO YES NO Correct wiring between motor control relay and airflow switch. YES Is the unit equipped with a time delay board? NO ** Is there voltage across terminal 7 & 4 of the motor control relay? YES YES Replace motor control relay. NO Is there voltage across H1-6 & H1-8 on TMR1? NO Correct wiring to TMR1. Is there voltage at terminal 5 on the motor control relay? YES ** Is there voltage across terminals H1-4 & H1-8 on TMR2? NO Correct wiring between terminal 5 and supply voltage. YES NO Check for proper operation of airflow switch and check wiring. CONTINUED ON NEXT PAGE. YES ** Tested with the start switch pressed in. T064D T064D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 63 Electronic Control Troubleshooting 35. Will Not Run – Steam – Rotary Coin Drop (continued) Is there voltage across terminal 5 & 8 of the motor control relay? YES Replace motor control relay. Is there voltage at terminals 1 & 4 of the cylinder motor? NO Correct wiring between cylinder motor and contact 9 on the motor control relay. YES NO Is there voltage across terminals 1 & 4 of fan motor? NO Correct wiring between fan motor and contact 8 on the motor control relay. Does the cylinder motor run? NO Replace the cylinder motor. YES YES NO Does the fan motor run? Replace the fan motor. The cylinder and fan motors are operational. YES Only for units without time delay boards. Is there voltage across terminals 3 & 5 of the fan motor centrifugal switch with the fan motor running? YES Replace fan motor. NO Is there voltage to terminal 6 on the motor control relay? NO Correct wiring between terminal 6 and power supply. YES Is there voltage across terminal 6 & 9 of the motor control relay? YES Replace motor control relay. NO ** Tested with the start switch pressed in. T065D T065D 64 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 36. Will Not Heat – Electric – Manual Timer With and without time delay board. Single and stacked units. Single and three phase power supply. NOTE: The following tests are conducted with the heat timer in the "ON" position with the machine running and calling for heat. Voltage checks are referenced to transformer neutral. Is there voltage across terminals 1 & 6 of the temp control bd? Is there voltage at airflow switch N.C. terminal to transformer neutral? NO Replace inoperative switch or correct airflow vane operation. NO Correct wiring between airflow switch and terminal 6 on CR1. YES YES YES NO Is there voltage at terminal 6 on CR1 to transformer neutral? Is there voltage across terminals 5 & 6 of the temp control bd? YES NO Is the thermistor shorted or open? YES Is there voltage from terminal 4 on CR1 to transformer neutral? Replace thermistor. NO Replace CR1. YES NO YES Is temperature selection switch shorted or open? YES Is unit equipped with time delay board? Replace selection switch. NO NO Replace the temperature control board. Is there voltage to terminal 3 of fan motor? NO Correct wiring between fan motor terminal 3 and CR1 terminal 4. Is there voltage from terminal 6 on CR2 to transformer neutral? NO Correct wiring between terminal 6 on CR2 to terminal 4 on CR1. YES YES CONTINUED ON NEXT PAGE Is there voltage from terminal 4 on CR2 to transformer neutral? Is there voltage at terminal 3 & 5 of fan motor? NO NO Replace CR2. Replace fan motor. YES YES Correct wiring between motor terminal 5 and temp control board terminal 1. Correct wiring between CR2 terminal 4 & terminal 1 on temp control board. T054D T054D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 65 Electronic Control Troubleshooting 36. Will Not Heat – Electric – Manual Timer (continued) Note: Voltage checks are referenced to transformer neutral. Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and temp control board. NO Replace elements. YES YES Is there voltage to the output side of the cabinet limit? Do the elements produce heat? NO Replace the cabinet limit. NO Correct wiring between stove limit and cabinet limit. NO Replace the stove limit. UNIT OPERATIONAL YES Is there voltage to the input side of the stove limit? YES Is there voltage to the output side of the stove limit? YES Is there voltage across HC1 & HC2 element contactor coils? NO Correct wiring between element contactor coils and stove limit. YES Is there voltage across the elements? NO Check wiring between elements, contactors and supply. Correct if necessary. YES T055D T055D 66 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 37. Will Not Heat – Electric Single and stacked units with single and three phase supply. Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. Is there voltage on FS-2 of EDC control? NO Correct wiring between FS-2 and COM of lint drawer. YES NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. YES Replace EDC control. Replace thermistor. NO Is there voltage on FS-1 of EDC control? Is there voltage on terminal 3 of fan motor centrifugal switch? Is there voltage at terminal 5 of fan motor centrifugal switch? NO Is the thermistor operational? YES Is there voltage on COM of airflow switch? NO NO Replace fan motor. YES Correct wiring between COM of airflow switch and FS-1 of EDC control. YES YES Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES Is there voltage at N.C. terminal of airflow switch? NO Check for proper function of airflow switch and replace if necessary. YES Is there voltage at the output of the cabinet limit? NO Replace cabinet limit. YES Is there voltage on terminal 7 of motor control relay? NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. Is there voltage to the input side of the stove limit? NO Correct wiring between stove limit and cabinet limit. YES YES Is there voltage at terminal 4 of motor control relay? NO Replace motor control relay. Continued on next page. YES T034D T034D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 67 Electronic Control Troubleshooting 37. Will Not Heat – Electric (continued) Is there voltage to the output side of the stove limit? NO Replace the stove limit. YES Is there voltage across coils HC1 & HC2? NO Correct wiring to the coils of HC1 and HC2. YES Is there voltage across the heating elements? NO Correct wiring between elements and supply. Replace HC1 and or HC2 if necessary YES Do the elements produce heat? NO Replace elements. YES Unit operational. T035D T035D 68 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 38. Will Not Heat – Electric – Rotary Coin Drop (With and Without Time Delay Board) Single and stacked tumblers with and without time delay. Single and three phase units. Is there voltage across across terminals 1 & 6 of the temp control board? Is there voltage at airflow switch N.C. terminal to transformer neutral? NO Is there voltage across across terminals 5 & 6 of the temp control board? Is there voltage at COM on switch B to transformer neutral? NO Correct wiring between airflow switch and COM on switch B. YES NO Is the thermistor shorted or open? Adjust the airflow switch or replace if inoperative. YES YES YES NO YES Replace thermistor. Is there voltage from N.C. on switch B to transformer neutral? NO Replace switch B. NO YES Is temperature selection switch shorted or open? YES Replace selection switch. YES NO Replace the temperature control board. Is there voltage on terminal 3 of fan motor to transformer neutral? Is the unit equipped with a time delay board? NO NO Correct wiring between terminal 3 of fan motor and N.C. terminal on switch B. Is there voltage from terminal 6 on CR2 to transformer neutral? NO Correct wiring between terminal 6 on CR2 to terminal N.C. on switch B. YES YES With fan motor running is there voltage from terminal 5 to transformer neutral? NO Replace fan motor. YES Is there voltage on terminal 1 of temp board to transformer neutral? YES CONTINUED ON NEXT PAGE Is there voltage from terminal 4 on CR2 to transformer neutral? NO Replace CR2. YES NO Correct wiring between terminal 1 of temp board to terminal 5 of fan motor. Correct wiring between terminal 4 on CR2 & terminal 1 on temp control board. Power supply to temp control board is good. T077D T077D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 69 Electronic Control Troubleshooting 38. Will Not Heat – Electric – Rotary Coin Drop (With and Without Time Delay Board) (continued) Note: Voltage checks are referenced to transformer neutral. Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and temp control board. NO Replace elements. YES YES Is there voltage to the output side of the cabinet limit? Do the elements produce heat? NO Replace the cabinet limit. NO Correct wiring between stove limit and cabinet limit. NO Replace the stove limit. NO Correct the wiring to the coils. UNIT OPERATIONAL YES Is there voltage to the input side of the stove limit? YES Is there voltage to the output side of the stove limit? YES Is there voltage across the coils of HC1 & HC2? YES Is there voltage across the elements? NO Check the wiring between elements, contactors and supply. Correct if necessary. YES T078D T078D 70 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 39. Will Not Heat – Electric/Gas – OPL Microprocessor Note: Testing conducted with unit running and calling for heat. Single and three phase supply. Reference voltage to transformer neutral terminal 3. Is there voltage at terminal 5 on OPL Micro? NO YES Continued on next page column 2. Test conducted with unit running and calling for heat. Is the thermister operating properly? NO Replace thermister. Is there voltage across terminals 2 & 3 of transformer secondary? NO Replace transformer. YES Note: Reference voltage to transformer secondary neutral terminal 3. Is there voltage to input of secondary fuse? NO Correct wiring between secondary fuse and transformer. YES YES Reference voltage to supply neutral. Is power supplied to unit? NO Connect supply and run unit. NO Replace secondary fuse. YES YES Is there voltage to input of primary fuse(s)? NO Correct wiring between primary fuse and supply. Is there voltage to N.O. terminal of door switch? NO Correct wiring between N.O. terminal of door switch and secondary fuse. YES YES Is there voltage to output of primary fuse(s)? NO Change primary fuse. With door closed is there voltage to COM of door switch? NO Check for proper operation, replace door switch if necessary. YES YES Is there voltage across terminals 1 & 2 on primary of transformer? YES Is there voltage to output of secondary fuse? NO Correct wiring between transformer and primary fuse. Is there voltage to N.O. of lint panel switch? NO Correct wiring between N.O. of lint panel switch and COM of door switch. YES Continued on next page Column 1. T010D T010D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 71 Electronic Control Troubleshooting 39. Will Not Heat – Electric/Gas – OPL Microprocessor Column 1 Column 2 Is there voltage to COM of lint panel switch with lint panel closed? NO Check for proper operation and replace lint panel switch if necessary. The following tests are conducted with the unit running and calling for heat. Is there voltage at COM of airflow switch? YES NO Correct wiring between COM & OPL Micro. YES Is there voltage at terminal 8 of OPL Micro? NO Correct wiring between terminal 8 of OPL Micro and COM of lint panel switch. Is there voltage at N.C. terminal of airflow switch? YES NO Check for proper operation and replace if necessary. YES Is there voltage to terminal 13 of OPL Micro? NO Three phase Replace OPL Micro. Is the unit supplied with single phase or three phase power? single phase YES Is there voltage at terminal 6 of OPL Micro? NO Correct wiring between terminal 6 & 13 on OPL Micro. YES Is there voltage at terminal 7 of motor control relay for OM models or terminal 8 for RM models? NO Correct wiring between terminal 7/8 of motor control relay and N.C. of airflow switch. YES Replace OPL Micro. Is there voltage at terminal 4 of motor control relay for OM models or terminal 6 for RM models? Is there voltage to terminal 14 on motor control relay? NO YES Correct wiring between terminal 14 on motor control relay and N.C. terminal of airflow switch. NO Replace motor control relay. YES Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between fan motor centrifugal switch and motor control relay. YES Is there voltage across terminals 14 & 13 of motor control relay? NO Is there voltage at terminal 5 of fan motor centrifugal switch? NO Replace fan motor. YES YES Replace motor control relay. Continued on next page. T011D T011D 72 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 39. Will Not Heat – Electric/Gas – OPL Microprocessor (continued) Continued from column 2 of previous page. Is there voltage to the input of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. Is there voltage to terminal 1 of ICM board? NO Replace ICM board. YES YES Is there voltage across the coils of the gas valve? Is there voltage to output of cabinet limit? NO NO Correct wiring to gas valve coils. NO Replace the coils or complete gas valve. Replace cabinet limit. YES YES Is there gas flow through the valve? Is there voltage to input of stove limit? NO Correct wiring between stove limit and cabinet limit. YES YES Is there a flame? YES Unit is operational. NO Is there voltage to the output side of the stove limit? NO Replace stove limit. Does the ignitor spark? YES Check gas pressures and adjust if necessary. YES NO Is the unit equipped with gas heat or electric heat? Replace igniter or ignition cable. ELECTRIC GAS Is there voltage across HC1 & HC2 coils? Is there voltage to terminal 2 of ICM board? NO Correct wiring between ICM board and stove limit. NO Correct the wiring to the HC1 and/or HC2 coils. YES Do the elements produce heat? YES UNIT OPERATIONAL. NO Correct wiring between supply, contacts and elements. Replace contactors and/or elements if necessary. YES T012D T012D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 73 Electronic Control Troubleshooting 40. Will Not Heat – Gas – EDC Models Single and stacked units. Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. Is there voltage on FS-2 of EDC control? Correct wiring between FS-2 and COM of lint panel switch. NO YES NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. YES Replace EDC control. Replace thermistor. Is there voltage on FS-1 of EDC control? Is there voltage on terminal 3 of fan motor centrifugal switch? NO NO Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? Is the thermistor operational? YES Is there voltage on COM of airflow switch? NO YES Replace fan motor. YES Correct wiring between COM of airflow switch and FS-1 of EDC control. NO Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES YES Is there voltage across COM & N.C. terminal of airflow switch? YES Check for proper function of airflow switch and replace if necessary. Is there voltage across cabinet limit? YES Replace cabinet limit. NO Correct wiring between stove limit and cabinet limit. NO NO Is there voltage on terminal 7 of motor control relay? NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. YES Is there voltage to the input side of the stove limit? YES Is there voltage across terminals 7 & 4 of motor control relay? YES Replace motor control relay. Continued on next page. NO TMB1833S TMB1833S 74 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 40. Will Not Heat – Gas – EDC Models (continued) Is there voltage to the output side of the stove limit? NO Replace the stove limit. YES Is there a flame? YES Unit operational. NO Is there voltage to terminal 2 of the ICM board? NO Correct wiring between terminal 2 of ICM board and stove limit. YES Is there voltage at terminal 1 of ICM board? NO Replace ICM board. YES Is there voltage across the coils of the gas valve? NO Correct wiring between gas valve and ICM board. NO Replace gas valve coils or complete gas valve. NO Replace high voltage ignition cable or igniter. YES Is there gas flow through the gas valve? YES Does the igniter spark? YES T033D T033D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 75 Electronic Control Troubleshooting 41. Will Not Heat – Gas – Manual Timer NOTE: The following tests are conducted with the Heat Timer in the "ON" position with the machine running and calling for heat. Voltage checks are referenced to transformer neutral. Is there voltage across terminals 1 & 6 of the temp control bd? Single and stacked units with and without time delay boards. Is there voltage at airlow switch N.C. terminal to transformer neutral? NO Replace inoperative switch or correct airflow vane operation. YES YES YES NO Is there voltage at terminal 6 on CR1 to transformer neutral? Is there voltage across terminals 5 & 6 of the temp control bd? NO Correct wiring between airlow switch and terminal 6 on CR1. YES NO Is there voltage from terminal 4 on CR1 to transformer neutral? Is the thermistor shorted or open? YES Replace thermistor. NO Is the temperature selection switch shorted or open? Is there voltage from terminal 6 on CR2 to transformer neutral? Is there voltage to terminal 3 of fan motor? NO Correct wiring between fan motor terminal 3 and CR1 terminal 4. Is there voltage across terminal 3 & 5 of fan motor? YES NO Correct wiring between terminal 6 on CR2 to terminal 4 on CR1. YES Is there voltage from terminal 4 on CR2 to transformer neutral? YES CONTINUED ON NEXT PAGE Is unit equipped with time delay board? NO Replace selection switch. NO Replace the temperature control board. Replace CR1. YES YES YES NO NO Replace CR2. YES Replace fan motor. Correct wiring between CR2 terminal 4 & terminal 1 on temp control board. NO Correct wiring between motor terminal 5 and temp control board terminal 1. T044D T044D 76 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 41. Will Not Heat – Gas – Manual Timer (continued) Note: Voltage checks are referenced to transformer neutral. Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and temp control board. Is there voltage across the coils of the gas valve? NO Is there gas flow through the gas valve? Replace the cabinet limit. NO Correct wiring between stove limit and cabinet limit. Does the igniter spark? YES Is there voltage to the output side of the stove limit? NO Replace gas valve or gas valve coils. NO Replace high voltage cable or igniter. YES YES Is there voltage to the input side of the stove limit? Correct wiring between gas valve and ICM board. YES YES Is there voltage to the output side of the cabinet limit? NO YES NO Replace the stove limit. NO Is there a flame? YES YES UNIT OPERATIONAL Is there voltage across terminals 2 & 3 of ICM board? NO Correct wiring between ICM board and stove limit. YES Is there voltage across terminals 1 & 3 of the ICM board? NO Replace ICM board YES TMB1834S TMB1834S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 77 Electronic Control Troubleshooting 42. Will Not Heat – Gas – Rotary Coin Drop Single and stacked tumblers with and without time delay. Is there voltage across terminals 1 & 6 of the temp control bd? Is there voltage at airflow switch N.C. terminal to transformer neutral? NO Is there voltage across terminals 5 & 6 of the temp control bd? Is there voltage at COM on switch B to transformer neutral? NO Correct wiring between airflow switch and COM on switch B. YES NO Is the thermistor shorted or open? Replace inoperative switch or correct airflow vane operation. YES YES YES NO YES Replace thermistor. Is there voltage from N.C. on switch B to transformer neutral? NO Replace switch B. NO YES Is temperature selection switch shorted or open? YES Replace selection switch. YES NO Replace the temperature control board. Is there voltage on terminal 3 of fan motor to transformer neutral? Is the unit equipped with a time delay board? NO NO Correct wiring between terminal 3 of fan motor and N.C. terminal on switch B. Is there voltage from terminal 6 on CR2 to transformer neutral? NO Correct wiring between terminal 6 on CR2 to terminal N.C. on switch B. YES YES With fan motor running is there voltage from terminal 5 to transformer neutral? NO Replace fan motor. YES Is there voltage on terminal 1 of temp board to transformer neutral? YES CONTINUED ON NEXT PAGE Is there voltage from terminal 4 on CR2 to transformer neutral? NO Replace CR2. YES NO Correct wiring between terminal 1 of temp board to terminal 5 of fan motor. Correct wiring between terminal 4 on CR2 & terminal 1 on temp control board. Power supply to temp control board is good. T090D T090D 78 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 42. Will Not Heat – Gas – Rotary Coin Drop (continued) Note: Voltage checks are referenced to transformer neutral. Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and temp control board. Is there voltage across the coils of the gas valve? YES Is there voltage to the output side of the cabinet limit? NO Replace the cabinet limit. Is there gas flow through the gas valve? NO Correct wiring between stove limit and cabinet limit. Replace gas valve coils or complete gas valve. Does the igniter spark? NO Replace high voltage ignition cable or igniter. YES NO Replace the stove limit. YES Is there voltage across terminals 2 & 3 of the ICM board? NO YES YES Is there voltage to the output side of the stove limit? Correct wiring between gas valve and ICM board. YES YES Is there voltage to the input side of the stove limit? NO NO Is there a flame? YES NO Correct wiring between ICM board and stove limit or neutral. UNIT OPERATIONAL YES Is there voltage across terminals 1 & 3 of the ICM board? NO Replace the ICM board. YES T091D T091D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 79 Electronic Control Troubleshooting 43. Will Not Heat – Steam – EDC Models Single and stacked units. Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. Is there voltage on FS-2 of EDC control? Correct wiring between FS-2 and COM of lint drawer. NO YES NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. YES Replace EDC control. Replace thermistor. Is there voltage on FS-1 of EDC control? Is there voltage on terminal 3 of fan motor centrifugal switch? NO NO Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? Is the thermistor operational? YES Is there voltage on COM of airflow switch? NO NO Correct wiring between COM of airflow switch and FS-1 of EDC control. YES Check for proper function of airflow switch and replace if necessary. NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. Is there voltage across cabinet limit? YES Replace cabinet limit. NO Correct wiring between stove limit and cabinet limit. NO NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. YES Is there voltage across terminals 7 & 4 of motor control relay? Is there voltage to the input side of the cabinet limit? YES NO Is there voltage on terminal 7 of motor control relay? Replace fan motor. YES YES Is there voltage across COM & N.C. terminal of airflow switch? YES Is there voltage to the input side of the stove limit? YES YES Replace motor control relay. Continued on next page. NO T096D T096D 80 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 43. Will Not Heat – Steam – EDC Models (continued) Is there voltage to the output side of the stove limit? NO Replace the stove limit. NO Correct wiring to steam valve coil. NO Repair or replace steam valve. NO Check for proper steam supply. Correct if necessary. YES Is there voltage across steam valve coil? YES Does steam valve operate properly? YES Is heat produced? YES Unit operational. T097D T097D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 81 Electronic Control Troubleshooting 44. Will Not Heat – Steam – Manual Timer Single and stacked units with and without time delay boards, manual timers. NOTE: The following tests are conducted with the Heat Timer in the "ON" position with the machine running and calling for heat. Voltage checks are referenced to transformer neutral. Is there voltage across terminals 1 & 6 of the temp control bd? Is there voltage at airflow switch N.C. terminal to transformer neutral? NO YES YES NO Adjust the airflow switch or replace if inoperative. YES Is there voltage at terminal 6 on CR1 to transformer neutral? Is there voltage across terminals 5 & 6 of the temp control bd? NO Correct wiring between airflow switch and terminal 6 on CR1. YES NO Is there voltage from terminal 4 on CR1 to transformer neutral? Is the thermistor shorted or open? YES YES YES YES Is there voltage from terminal 6 on CR2 to transformer neutral? Is there voltage to terminal 3 of fan motor? NO Correct wiring between fan motor terminal 3 and CR1 terminal 4. Is there voltage across terminal 3 & 5 of fan motor? NO Correct wiring between terminal 6 on CR2 to terminal 4 on CR1. YES Is there voltage from terminal 4 on CR2 to transformer neutral? YES CONTINUED ON NEXT PAGE Is unit equipped with time delay board? NO Replace selection switch. NO Replace the temperature control board. Replace CR1. Replace thermistor. NO Is temperature selection switch shorted or open? NO NO Replace CR2. YES YES Replace fan motor. Correct wiring between CR2 terminal 4 & terminal 1 on temp control board. NO Correct wiring between motor terminal 5 and temp control board terminal 1. T019D T019D 82 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 44. Will Not Heat – Steam – Manual Timer (continued) Note: Voltage checks are referenced to transformer neutral. Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and temp control board. YES Is heat produced? NO Check for proper steam supply. Correct if necessary. YES UNIT OPERATIONAL Is there voltage to the output side of the cabinet limit? NO Replace the cabinet limit. NO Correct wiring between stove limit and cabinet limit. NO Replace the stove limit. NO Correct wiring to the steam valve. NO Replace steam valve. YES Is there voltage to the input side of the stove limit? YES Is there voltage to the output side of the stove limit? YES Is there voltage across the coil of the steam valve? YES Do the steam valves operate properly? YES T020D T020D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 83 Electronic Control Troubleshooting 45. Will Not Heat – Steam – OPL Microprocessor Testing conducted with unit running and calling for heat. Reference voltage to transformer neutral terminal 3. Is there votlage at terminal 5 on OPL Micro? YES Continued on next page column 2. Is there voltage across terminals 2 & 3 of transformer secondary? NO Replace transformer. YES NO Note: Reference voltage to transformer secondary neutral terminal 3. Is the thermister operating properly? NO Replace thermister. Is there voltage to input of secondary fuse? NO Correct wiring between secondary fuse and transformer. YES YES Reference voltage to supply neutral. Is power supplied to unit? NO Connect supply and run unit. YES NO Replace secondary fuse. YES Is there voltage to input of primary fuse(s)? NO Correct wiring between primary fuse and supply. YES Is there voltage to N.O terminal of door switch? NO Correct wiring between N.O. terminal of door switch and secondary fuse. YES Is there voltage to output of primary fuse(s)? NO Change primary fuse. YES With door closed is there voltage to COM of door switch? NO Check for proper operation, replace door switch if necessary. YES Is there voltage across terminals 1 & 2 on primary of transformer? YES Is there voltage to output of secondary fuse? NO Correct wiring between transformer and primary fuse. Is there voltage to N.O. of lint panel switch? NO Correct wiring between N.O. of lint panel switch and COM of door switch. YES Continued on next page column 1. T003D T003D 84 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 45. Will Not Heat – Steam – OPL Microprocessor (continued) Column 1 Is there voltage to COM of lint panel switch with lint panel closed? Column 2 NO Check for proper operation and replace lint panel switch if necessary. Is there voltage at COM of airflow switch? YES Is there voltage at terminal 8 of OPL Micro? NO Correct wiring between terminal 8 of OPL Micro and COM of lint panel switch. Correct wiring between COM & OPL Micro. Is there voltage at N.C. terminal of airflow switch? NO Check for proper operation and replace if necessary. YES NO Three phase Replace OPL Micro. YES Is there voltage at terminal 6 of OPL Micro? NO YES YES Is there voltage to terminal 13 of OPL Micro? The following tests are conducted with the unit running and calling for heat. Is the unit supplied with single phase or three phase power? Single phase NO Correct wiring between terminal 6 & 13 on OPL Micro. Is there voltage at terminal 7 of motor control relay ? NO Correct wiring between terminal 7 of motor control relay and N.C. of airflow switch. YES YES Replace OPL Micro. Is there voltage at terminal 4 of motor control relay? Is there voltage to terminal 14 on motor control relay? NO YES Correct wiring between terminal 14 on motor control relay and N.C. terminal of airflow switch. NO Replace motor control relay. YES Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between fan motor centrifugal switch and motor control relay. YES Is there votlage to terminal 13 of motor control relay? YES Is there voltage at terminal 5 of fan motor centrifugal switch? NO Replace fan motor. NO YES Replace motor control relay. Continued on next page. T004D T004D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 85 Electronic Control Troubleshooting 45. Will Not Heat – Steam – OPL Microprocessor (continued) Continued from column 2 of previous page. Is there voltage to the input of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. Is heat produced? NO Check for proper steam supply. Correct if necessary. YES YES UNIT OPERATIONAL. Is there voltage to output of cabinet limit? NO Replace cabinet limit. YES Is there voltage to input of stove limit? NO Correct wiring between stove limit and cabinet limit. YES Is there voltage to the output side of the stove limit? NO Replace stove limit. YES Is there voltage across steam valve coil? NO Correct wiring to steam valve coil. NO Replace or rebuild steam valve. YES Does the steam valve operate properly? YES TMB1835S TMB1835S 86 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Electronic Control Troubleshooting 46. Will Not Heat – Steam – Rotary Coin Drop Single and stacked tumblers with and without time delay. Is there voltage across terminals 1 & 6 of the temp control board? Is there voltage at airflow switch N.C. terminal to transformer neutral? NO Is there voltage at COM on switch B to transformer neutral? Is there voltage across terminals 5 & 6 of the temp control board? NO Correct wiring between airflow switch and COM on switch B. YES NO Is the thermistor shorted or open? Adjust the airflow switch or replace if inoperative. YES YES YES NO YES Replace thermistor. Is there voltage from N.C. on switch B to transformer neutral? NO Replace switch B. NO YES Is temperature selection switch shorted or open? YES Replace selection switch. YES NO Replace the temperature control board. Is there voltage on terminal 3 of fan motor to transformer neutral? Is the unit equipped with a time delay board? NO NO Correct wiring between terminal 3 of fan motor and N.C. terminal on switch B. Is there voltage from terminal 6 on CR2 to transformer neutral? NO Correct wiring between terminal 6 on CR2 to terminal N.C. on switch B. YES YES With fan motor running is there voltage from terminal 5 to transformer neutral? NO Replace fan motor. YES Is there voltage on terminal 1 of temp board to transformer neutral? YES CONTINUED ON NEXT PAGE Is there voltage from terminal 4 on CR2 to transformer neutral? NO Replace CR2. YES NO Correct wiring between terminal 1 of temp board to terminal 5 of fan motor. Correct wiring between terminal 4 on CR2 & terminal 1 on temp control board. Power supply to temp control board is good. T066D T066D 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 87 Electronic Control Troubleshooting 46. Will Not Heat – Steam – Rotary Coin Drop (continued) Note: Voltage checks are referenced to transformer neutral. Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and temp control board. NO Check for proper steam supply. Correct if necessary. YES YES Is there voltage to the output side of the cabinet limit? Is heat produced? NO Replace the cabinet limit. NO Correct wiring between stove limit and cabinet limit. NO Replace the stove limit. NO Correct wiring to steam valve NO Replace or rebuild steam valve. UNIT OPERATIONAL YES Is there voltage to the input side of the stove limit? YES Is there voltage to the output side of the stove limit? YES Is there voltage across coil of steam valve? YES Does the steam valve operate properly? YES TMB1836S TMB1836S 88 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Section 5 Micro Display Control Troubleshooting 47. Coins Ignored When Entered Single and stacked units. Gas and electric heat. Single and three phase power supply. Start coin drop diagnostic tests. Does the display on the electronic control increment properly? YES Exit diagnostic testing and reset control. (Prompting for vend price) NO Reconnect and run diagnostic test again. NO Reconnect and run diagnostic test again. NO Is connector H2 on the control firmly seated in its receptacle? YES Is the 3 pin connector between coin drop and control connected correctly? YES Are wires exiting coin drop optical sensor cracked or broken? YES Replace coin drop or optic switch. NO Replace coin drop. If problem still exists then replace the electronic control. 70284701 TMB1837S © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 89 Micro Display Control Troubleshooting 48. Control Has No Display (1) Is there power supplied to the unit? Gas, steam and electric heat. Single and three phase power supply. NO Plug unit in and start cycle. Is there 24 VAC at the input of the secondary fuse? NO Correct wiring between secondary fuse and transformer. YES YES (7) (2) Is there 120 VAC at input of primary fuses? (6) NO Correct wiring between primary fuse and power supply. Is there 24 VAC at output side of secondary fuse? NO Replace secondary fuse. YES YES (8) (3) Is there 120 VAC at output side of the primary fuses? NO Replace primary fuse(s). NO Replace Electronic Control. YES YES (4) Is there 120 VAC across terminals 1 & 2 of transformer primary? Is there 24 VAC across H1-1 & H1-3 on the control? NO Correct wiring between primary fuse and transformer. Correct wiring between control and secondary fuse. YES (5) Is there 24 VAC across terminals 1 & 4 of transformer secondary? NO Replace transformer. YES TMB249S 90 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 L2 4 7 SECONDARY FUSE MDL-3.5A 250V 6 2 BLK BLK RED RED RED/WHT 120V 1 N.O. COM LT. BLU 4 2 3 RED/WHT RED/BLU 5 N.O. COM LINT PANEL SWITCH SECONDARY FUSE 1.25 T 250V WHT 24V 1.5A DOOR SWITCH 3 24V 3.5A 1 250V AGC-2A FUSE PRIMARY 2 RED RED N RED/BLK RED/BLK RED/BLK FS-2 H2-1 H2-2 H2-5 3 MDC CONTROL 2 1 5 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT H5 6 8 7 9 10 11 12 HEAT RELAY MOTOR RELAY COIN DROPS 4 RED WHT/BLU DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt 24Vac H1-2 2 H6 3 4 5 6 SEE VEND APPLICATION DETAIL 1 24VAC H4 10 9 7 6 H3 5 4 7 6 5 4 3 3 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 8 WHT FS-1 H2-4 H2-3 H2-6 1 WHT H4 10 9 COM AIR FLOW SWITCH ORG/BRN WHT 8 TMB1767S CABINET LIMIT THERMOSTAT N.O. N.C. BRN/RED CHASSIS GROUND GRN/YEL BLK THERMISTOR 025 & 030 MODELS START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY 1 H1-1 CONNECTION 24Vac Ret H1-4 H1-3 24Vac Ret L1 4N25 SERVICE H11L1 70284701 WHT/VLT TB1 Micro Display Control Troubleshooting Control has no display 91 Micro Display Control Troubleshooting 49. Door Open Indicator Gas, steam and electric heat. Single and three phase power supply. (1) Is there voltage at H2-1 on the Electronic control? YES Replace Control. NO Reference voltage checks to transformer neutral. (6) Is there 24 VAC at the input of the secondary fuse? NO Correct wiring between secondary fuse and transformer. YES (7) Is there power supplied to the unit? NO Plug unit in and start cycle. YES NO Correct wiring between primary fuses and power supply. NO Replace primary fuse(s). Correct wiring between N.O. and output of secondary fuse. With door closed is there 24 VAC to COM of door switch? NO Check for proper function of door switch replace if necessary. NO Correct wiring between N.O. on lint drawer and COM on door switch. NO Check for proper operation replace if necessary. YES (4) (10) NO Correct wiring between primary fuses and transformer. YES Is there 24 VAC at N.O. of lint drawer switch? YES (5) YES NO (9) YES Is there 24 VAC across terminals 2 & 3 of transformer secondary? Is there 24 VAC at N.O. of door switch? YES (3) Is there 120 VAC across terminals 1 & 2 of transformer primary? Replace secondary fuse. (8) YES Is there 120 VAC at output side of the primary fuses? NO YES (2) Is there 120 VAC at input of primary fuses? Is there 24 VAC at output side of secondary fuse? (11) NO Replace transformer. Is there 24 VAC at COM of lint drawer switch with lint panel closed? YES Correct wiring between H2-1 of electronic control and COM of lint drawer switch. TMB250S 92 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 7 L2 SECONDARY FUSE MDL-3.5A 250V 6 2 BLK BLK RED RED RED/WHT FUSE 9 1 N.O. COM LT. BLU 4 2 4 RED/WHT N.O. COM LINT PANEL SWITCH 11 RED/BLU 10 SECONDARY FUSE 1.25 T 250V WHT 24V 1.5A DOOR SWITCH 8 3 120V 250V AGC-2A 24V 3.5A 1 3 PRIMARY 2 RED RED N RED/BLK RED/BLK RED/BLK 5 FS-2 H2-1 H2-2 H2-5 3 2 1 5 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT H5 6 8 7 9 10 11 12 HEAT RELAY MOTOR RELAY COIN DROPS 4 RED WHT/BLU DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt MDC CONTROL 24Vac H1-2 2 H6 3 4 5 6 SEE VEND APPLICATION DETAIL 1 24VAC H4 10 9 7 6 H3 5 4 7 6 5 4 3 3 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 8 WHT FS-1 H2-4 H2-3 H2-6 1 WHT H4 10 9 COM AIR FLOW SWITCH ORG/BRN WHT 8 TMB1768S CABINET LIMIT THERMOSTAT N.O. N.C. BRN/RED CHASSIS GROUND GRN/YEL BLK THERMISTOR 025 & 030 MODELS START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY 1 H1-1 CONNECTION 24Vac Ret H1-4 H1-3 24Vac Ret L1 4N25 SERVICE H11L1 70284701 WHT/VLT TB1 Micro Display Control Troubleshooting Door open indicator 93 Micro Display Control Troubleshooting 50. Motor Will Not Start/Run Note: test conducted with vend (1) price satisfied and start button pressed. Is there voltage across H2-1 and H2-6 on the electronic control ? NO Single and stacked units. Gas, electric and steam heat. Single and three phase supply. Refer to Door open flow chart. (2) NO Replace control. Does the fan motor run? NO Correct wiring to coil of motor relay . 3 phase. Also see Note on next page NO Replace fan motor. Single phase Three phase. Also see Note on next page. (12) Is the unit equipped with single phase or three phase power? Is there supply voltage between L2 & L3 of motor control relay? Single phase (4) NO Correct wiring between terminal 5 and power supply. NO Replace motor control relay. NO Correct wiring between L2, L3 and supply. YES (13) Is there voltage across terminals L2 & T2 and L3 & T3? YES (5) Is there voltage at terminal 8 of motor control relay? Correct wiring between fan motor and motor control relay. YES Is unit equipped with single phase or three phase power supply? YES Is there voltage at terminal 5 of the motor control relay? NO YES YES (3) Is there voltage across the coil of the motor control relay? (6) Is there voltage across terminals 1 & 4 of the fan motor? YES Is there voltage across H2-4 and H2-6 on the electronic control? Replace MDC Control. YES Replace motor control relay. NO (7) YES Is there voltage at terminal 6 of motor control relay? (10) Is there supply voltage to L1 and L2 of the motor control relay? NO Correct wiring between L1, L2 and power supply. YES (11) Is there votlage across L1 & T1 and L2 & T2? Replace motor control relay. Correct wiring between terminal 6 of motor control relay and supply. YES (8) Is there voltage at terminal 9 of motor control relay? YES NO NO Replace motor control relay. YES NO 94 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Micro Display Control Troubleshooting Motor will not start/run (9) Is there voltage across terminals 1 & 4 of cylinder motor? NO Correct wiring between fan motor and motor control relay. NO Correct wiring between cylinder motor and motor control relay. YES Does the cylinder motor run? NO Replace cylinder motor. NO Replace fan motor. YES Motors are operational. Single phase Note: For high voltage three phase supply (380 volts or higher), the cylinder and fan motors are supplied by L1, L2, L3 through the motor relay terminals T1, T2, T3. Make the appropriate adjustments when doing voltage checks. Also n next NO YES NO NO Correct wiring between L2, L3 and supply. Replace motor control relay. Correct wiring between terminal 6 of motor control relay and supply. Replace motor control relay. TMB251S Please see following 2 pages for wiring diagram information. 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 95 RED/BLK RED/BLK RED/BLK FS-2 3 H2-1 2 1 5 4 H5 6 8 7 COIN DROPS 9 10 11 12 HEAT RELAY MOTOR RELAY 24Vac H1-2 H2-2 DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt 24Vac Ret © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1 2 24VAC H6 3 4 5 6 H4 10 9 7 6 H3 5 4 7 6 WHT 5 4 3 3 2 1 2 100 OHM 1/4 watt 1 FS-1 H2-4 H2-3 H4 10 9 COM AIR FLOW SWITCH ORG/BRN WHT 8 7 CABINET LIMIT THERMOSTAT N.O. M 3 4 BRN 5 A 3 7 2 M 1 GRN/YEL TH 4 GND 2 WHT/ BRN 3 ICM 1 VALV GND 3 GND 3 FAN MOTOR CENTRIFUGAL SWITCH IGN ORG/ WHT VLT/WHT 4 WHT WHT BLK THERMISTOR WHT STOVE LIMIT THERMOSTAT BRN/WHT B 6 WHT VLT WHT 035 MODELS N.C. ORG BRN/RED 2 CHASSIS GROUND GRN/YEL BLK THERMISTOR WHT H2-6 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 8 START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY H1-1 SEE VEND APPLICATION DETAIL H1-4 H2-5 MDC CONTROL RED WHT/BLU 4N25 H1-3 24Vac Ret 025 & 030 MODELS H11L1 1 WHT/VLT 5 1 WHT BLK WHT/ 8 5 BLK GRY/BLK 96 M 3 MAIN 1 THERM PROT. 6 MAIN 2 AUX 5 SECOND COIL FIRST COIL GAS VALVE RUN FAN MOTOR 5 4 9 6 BLK/RED BLU/BLK 4 1 RUN MAIN 1 THERM PROT. 8 TB1-L1 9 MAIN 2 AUX CYLINDER MOTOR M BLK/RED 208-240V SERVICE TB1-L2 120V SERVICE 7 4 TMB1839S TB1-N Micro Display Control Troubleshooting Motor will not start/run (Sheet 1 of 2) 70284701 LT. BLU WHT T3 T2 H5 H3 1 250V AGC-2A FUSES PRIMARY BLK/ WHT 2 BLK/ WHT 2 1 3 3 4 1 N.O. COM 6 4 RED/WHT RED/BLU N.O. COM LINT PANEL SWITCH SECONDARY FUSE 1.25 T 250V WHT 24V 1.5A 5 DOOR SWITCH 24V 4.0A 2 SEE TRANSFORMER CONFIGURATION JUMPER SECONDARY FUSE MDL-3.5A 250V HC1 BLK BLK RED RED RED/WHT RED RED HC2 RED/BLK RED/BLK RED/BLK FS-2 H2-1 H2-2 H2-5 3 2 1 5 H5 6 8 7 9 10 11 12 HEAT RELAY MOTOR RELAY COIN DROPS 4 RED WHT/BLU 1 DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt MDC CONTROL 24Vac H1-2 L3 24Vac Ret 1 2 24VAC H6 3 4 5 6 H4 8 7 6 H3 5 4 7 6 5 4 3 3 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 10 9 WHT FS-1 H2-4 H2-3 H2-6 1 WHT H4 10 9 COM AIR FLOW SWITCH ORG/BRN WHT 8 7 CABINET LIMIT THERMOSTAT N.O. VLT M 4 BRN 5 3 14 2 M 3 1 13 VLT/WHT STOVE LIMIT THERMOSTAT BRN/WHT 2 6 WHT ORG/ WHT WHT WHT BLK WHT/ BRN 3 11 10 HC2 HC1 FAN MOTOR CENTRIFUGAL SWITCH THERMISTOR WHT 035 MODELS WHT N.C. ORG BRN/RED CHASSIS GROUND GRN/YEL BLK THERMISTOR 025 & 030 MODELS START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY H1-1 SEE VEND APPLICATION DETAIL H1-4 H1-3 24Vac Ret L2 4N25 TB1-L3 H11L1 TB1-L2 WHT/VLT 5 T1 L1 BLK GRY/BLK 70284701 1 M 3 BLK/WHT 4 1 13 RUN MAIN 1 THERM PROT. AUX MAIN 2 TMB1770S 9 MAIN 2 AUX 5 M 12 6 T3 BLK/RED CYLINDER MOTOR MAIN 1 THERM PROT. M L3 LT. BLU FAN MOTOR RUN T2 L2 TB1-L3 TB1-L2 TB1-L1 BLU/BLK TB1-L1 4 Micro Display Control Troubleshooting Motor will not start (Sheet 2 of 2) © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 97 LT. BLU WHT Micro Display Control Troubleshooting 51. Unit Will Not Heat (Gas) Single and stacked gas units. Note: Tests are conducted with unit running and calling for heat. Unit Will Not Heat (Gas) All voltage checks are referenced to transformer neutral. (1) Is there voltage at FS-2 of MDC control? (7) NO Correct wiring between FS-2 and COM of lint drawer. YES Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. YES Replace MDC control. Replace thermistor. (2) (8) NO Is there voltage at FS-1 of MDC control? Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? NO Is the thermistor operational? YES NO (9) NO Correct wiring between COM of airflow switch and FS-1 of MDC control. NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. (10) (4) YES Check for proper function of airflow switch and replace if necessary. NO Is there voltage across cabinet limit? YES Replace cabinet limit. NO (5) Is there voltage at terminal 7 of motor control relay? Is there voltage to the input side of the cabinet limit? YES YES Is there voltage across COM & N.C. terminal of airflow switch? Replace fan motor. YES (3) Is there voltage at COM of airflow switch? YES (11) NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. YES Is there voltage to the input side of the stove limit? NO Correct wiring between stove limit and cabinet limit. YES (6) Is there voltage across terminals 7 & 4 of motor control relay? YES Replace motor control relay. NO 98 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Micro Display Control Troubleshooting 51. Unit Will Not Heat (Gas) (continued) No Heat continued. (12) Is there voltage across the stove limit? YES Replace the stove limit. NO YES Is there a flame? Unit operational. NO (13) Is there voltage to terminal 2 of the Ignition Control Module (ICM)? NO Correct wiring between terminal 2 of ICM and stove limit. YES Note: Make sure unit is not in a lock out condition. (14) Is there voltage at terminal 1 of ICM board? NO Replace ICM board. YES (15) Is there voltage across the coils of the gas valve? NO Correct wiring between gas valve and ICM board. NO Replace gas valve coils or complete gas valve. NO Replace high voltage ignition cable or igniter. YES Is there gas flow through the gas valve? YES Does the igniter spark? YES TMB252S Please see following page for wiring diagram information. 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 99 RED/BLK RED/BLK RED/BLK FS-2 H2-1 H2-2 3 2 1 5 4 H5 6 8 7 COIN DROPS 9 10 11 12 HEAT RELAY MOTOR RELAY DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED 24Vac H1-2 H2-5 MDC CONTROL VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt RED WHT/BLU 24Vac Ret © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1 2 24VAC H6 3 4 5 6 H4 10 9 7 6 H3 5 4 7 6 WHT 5 4 3 3 2 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 8 START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY H1-1 SEE VEND APPLICATION DETAIL H1-4 H1-3 24Vac Ret FS-1 H2-4 H2-3 H2-6 1 WHT H4 10 9 COM AIR FLOW SWITCH ORG/BRN 3 WHT 8 N.O. CABINET LIMIT THERMOSTAT 10 7 M 5 4 BRN 5 9 A 3 12 7 2 M 6 1 11 GRN/YEL 7 TH 4 GND 2 WHT/ BRN 3 8 ICM 1 VALV 3 GND 3 GND 13 FAN MOTOR CENTRIFUGAL SWITCH IGN ORG/ WHT VLT/WHT 4 WHT WHT BLK THERMISTOR WHT STOVE LIMIT THERMOSTAT BRN/WHT B 6 WHT VLT WHT 035 MODELS N.C. ORG BRN/RED 4 CHASSIS GROUND GRN/YEL BLK THERMISTOR 025 & 030 MODELS 4N25 1 H11L1 5 1 WHT BLK WHT/ 8 BLK GRY/BLK 100 WHT/VLT 5 M MAIN 1 THERM PROT. MAIN 2 AUX 5 15 SECOND COIL FIRST COIL GAS VALVE RUN 14 3 FAN MOTOR 4 TMB1840S Micro Display Control Troubleshooting Unit Will Not Heat (Gas) 70284701 LT. BLU WHT Micro Display Control Troubleshooting 52. Unit Will Not Heat (Steam) Single and stacked units. Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1) Is there voltage on FS-2 of EDC control? (7) NO Correct wiring between FS-2 and COM of lint drawer. YES Replace EDC control. Replace thermistor. (2) YES Replace fan motor. YES NO (3) Is there voltage on COM of airflow switch? Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. YES Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? NO Is the thermistor operational? YES NO (8) NO Is there voltage on FS-1 of EDC control? Is there voltage on terminal 3 of fan motor centrifugal switch? (9) NO Correct wiring between COM of airflow switch and FS-1 of EDC control. YES Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES (10) (4) Is there voltage across COM & N.C. terminal of airflow switch? YES Check for proper function of airflow switch and replace if necessary. NO Is there voltage across cabinet limit? YES Replace cabinet limit. NO (5) Is there voltage on terminal 7 of motor control relay? (11) NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. YES Is there voltage to the input side of the stove limit? NO Correct wiring between stove limit and cabinet limit. YES (6) Is there voltage across terminals 7 & 4 of motor control relay? YES Replace motor control relay. NO 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 101 Micro Display Control Troubleshooting 52. Unit Will Not Heat (Steam) (continued) No Heat continued. (12) O Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. Is there voltage across the stove limit? YES Replace the stove limit. NO (13) YES Is there voltage across the coil of the steam valve? NO Replace fan motor. Correct wiring between steam valve and stove limit. YES O Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. Does the steam valve open allowing steam to flow? No Replace or rebuild steam valve. Unit operational. ES O Replace cabinet limit. Correct wiring between stove limit and cabinet limit. TMB1841S Please see following page for wiring diagram information. 102 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 RED/BLK RED/BLK RED/BLK FS-2 H2-1 3 2 1 5 4 H5 6 8 7 COIN DROPS 9 10 11 12 HEAT RELAY MOTOR RELAY 24Vac H1-2 H2-2 DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt 24Vac Ret © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1 2 24VAC H6 3 4 5 6 H4 8 7 6 H3 5 4 7 6 WHT 5 4 3 2 3 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 10 9 START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY H1-1 SEE VEND APPLICATION DETAIL H1-4 H2-5 MDC CONTROL RED WHT/BLU 4N25 H1-3 24Vac Ret FS-1 H2-4 H2-3 H2-6 1 WHT H4 10 9 COM 8 N.O. 9 CABINET LIMIT THERMOSTAT 10 7 VLT M 5 4 BRN 5 A 12 BRN/WHT B 6 WHT 3 7 11 M 6 1 4 7 WHT/ BRN 3 8 STEAM VALVE 13 FAN MOTOR CENTRIFUGAL SWITCH WHT/BLK ORG/ WHT WHT WHT BLK THERMISTOR WHT VLT/WHT 2 STOVE LIMIT THERMOSTAT WHT 035 MODELS N.C. ORG BRN/RED 4 AIR FLOW SWITCH ORG/BRN 3 WHT CHASSIS GROUND GRN/YEL BLK THERMISTOR 025 & 030 MODELS H11L1 70284701 WHT/VLT 1 WHT TMB1772S 5 Micro Display Control Troubleshooting Unit Will Not Heat (Steam 103 Micro Display Control Troubleshooting 53. Unit Will Not Heat (Electric) Single and stacked units. Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1) Is there voltage at FS-2 of EDC control? (7) NO Correct wiring between FS-2 and COM of lint panel switch. YES Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 13 of motor control relay. YES Replace EDC control. Replace thermistor. (2) (8) NO Is there voltage on FS-1 of EDC control? Is the thermistor operational? YES Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? NO NO (9) NO Correct wiring between COM of airflow switch and FS-1 of EDC control. YES Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES (10) (4) Is there voltage across COM & N.C. terminal of air flow switch? Replace fan motor. YES (3) Is there voltage at COM of airflow switch? YES YES Check for proper function of airflow switch and replace if necessary. NO Is there voltage across cabinet limit? YES Replace cabinet limit. NO (5) Is there voltage at terminal 14 of motor control relay? (11) NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. YES Is there voltage to the input side of the stove limit? NO Correct wiring between stove limit and cabinet limit. YES (6) Is there voltage across terminals 13 & 14 of motor control relay? YES Replace motor control relay. NO 104 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 Micro Display Control Troubleshooting 53. Unit Will Not Heat (Electric) (continued) No Heat continued. Note: Please make the oppropriate adjustments if your unit is single phase. (12) ring inal 3 tor witch 13 of relay. Is there voltage across the stove limit? YES Replace the stove limit. NO (13) Is there voltage across the coil(s) of the heater contactor(s)? NO Correct wiring between heater contactor and stove limit. NO Correct wiring between HC1 and Line voltage. NO Correct wiring between HC2 and Line voltage. NO Check for proper operation of contactors, replace them if necessary. motor. YES (14) ring binet nal 5 tor witch. Is there voltage to the L1, L2 and L3 terminals of HC1? YES (15) Is there voltage to the L1, L2 and L3 terminals of HC2? binet YES (16)(17)(18) Is there voltage across T1 & T2, T2 & T3 and T3 & T1? ring ve limit limit. Unit is operational YES Do all elements produce heat? NO Check elements for shorts or opens. Check wires between contactors and elements. YES TMB1842S Please see following page for wiring diagram information. 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 105 16 L3 CONNECTION HC1 T1 HC2 T3 H6 H1 T1 HC2 L1 T2 HC1 L2 H4 H2 T2 HC2 L2 17 15 18 HEATING ELEMENTS L1 L3 H5 H3 1 250V AGC-2A FUSES PRIMARY 2 2 1 N.O. COM DOOR SWITCH 6 4 RED/WHT RED/BLU N.O. COM LINT PANEL SWITCH SECONDARY FUSE 1.25 T 250V WHT 1.5A 1 5 24V 4 4.0A 3 3 24V 2 SEE TRANSFORMER CONFIGURATION JUMPER SECONDARY FUSE MDL-3.5A 250V T3 HC1 L3 TB1-L3 TB1-L2 BLK/ WHT BLK/ WHT L2 BLK BLK RED RED RED/WHT RED RED SERVICE RED/BLK RED/BLK RED/BLK FS-2 H2-1 H2-2 H2-5 3 MDC CONTROL 2 1 5 H5 6 8 7 9 10 11 12 HEAT RELAY MOTOR RELAY COIN DROPS 4 RED WHT/BLU 1 DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt 24Vac H1-2 TB1-L1 24Vac Ret © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1 2 24VAC H6 3 4 5 6 H4 8 7 6 H3 5 4 7 6 5 4 3 2 3 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 10 9 WHT FS-1 H2-4 H2-3 H2-6 1 WHT H4 10 9 COM 8 N.O. 9 CABINET LIMIT THERMOSTAT 10 7 VLT 4 BRN M 5 5 3 14 2 11 M 6 1 13 7 ORG/ WHT WHT WHT BLK WHT/ BRN 3 8 HC2 HC1 13 5 WHT TMB1773S FAN MOTOR CENTRIFUGAL SWITCH THERMISTOR WHT VLT/WHT STOVE LIMIT THERMOSTAT 12 BRN/WHT 6 WHT 035 MODELS WHT N.C. ORG BRN/RED 4 AIR FLOW SWITCH ORG/BRN 3 WHT CHASSIS GROUND GRN/YEL BLK THERMISTOR 025 & 030 MODELS START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY H1-1 SEE VEND APPLICATION DETAIL H1-4 H1-3 24Vac Ret L1 4N25 14 H11L1 106 WHT/VLT TB3 Micro Display Control Troubleshooting Unit Will Not Heat (Electric) 70284701 Micro Display Control Troubleshooting WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the dryer(s) before servicing. • Close gas shut-off valve to gas dryer(s) before servicing. • Never start the dryer(s) with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded. W001R1 54. Error Codes OP - Indicates physical “open” in the thermistor circuit. Possible causes are: 1) thermistor, 2) wiring between control and thermistor, 3) control. SH - Indicates a “short” in the thermistor circuit. Possible causes are: 1) shorted thermistor, 2) a short in the wiring between control and thermistor, 3) control. Card Reader Machines: (In addition to the above errors) EC:19 - Indicates no card reader communication. The control and the reader cannot communicate. Check reader, control and harness. NOTE: For all other card reader errors, consult the card reader manual provided by the manufacturer. Display Corrective Action OP Indicates an open circuit in the thermistor. • Check thermistor. Replace if inoperative. • Check wiring between control and thermistor. Refer to wiring diagram for proper wiring. • Check control. Replace if inoperative. SH Indicates a short circuit in the thermistor. • Check thermistor. Replace if inoperative. • Check wiring between control and thermistor. Refer to wiring diagram for proper wiring. • Check control. Replace if inoperative. Indicates no communication between control and card reader. • Check card reader. Replace if inoperative. • Check wire harness connecting card reader and control. Replace if inoperative. • Check control. Replace if inoperative. EC:19 *Card Reader models only 70284701 Definition © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 107 L2 SECONDARY FUSE MDL-3.5A 250V 2 BLK BLK RED RED RED/WHT 1 N.O. COM LT. BLU 4 2 RED/WHT RED/BLU N.O. COM LINT PANEL SWITCH SECONDARY FUSE 1.25 T 250V WHT 24V 1.5A DOOR SWITCH 3 120V 250V 24V 3.5A 1 AGC-2A FUSE RED RED PRIMARY RED/BLK RED/BLK RED/BLK FS-2 H2-1 H2-2 H2-5 3 MDC CONTROL 2 1 5 H5 6 8 7 9 10 11 12 HEAT RELAY MOTOR RELAY COIN DROPS 4 RED WHT/BLU DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt 24Vac H1-2 CONNECTION 24Vac Ret 1 2 24VAC H6 3 4 5 6 H4 10 9 7 6 H3 5 4 7 6 5 4 3 3 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 8 WHT FS-1 H2-4 H2-3 H2-6 1 WHT H4 10 9 COM AIR FLOW SWITCH ORG/BRN WHT 8 7 CABINET LIMIT THERMOSTAT N.O. M 4 BRN 5 VLT A 3 7 2 M 1 GRN/YEL TH 4 GND 2 WHT/ BRN 3 ICM 1 VALV 3 GND 3 GND FAN MOTOR CENTRIFUGAL SWITCH IGN ORG/ WHT VLT/WHT 4 WHT WHT BLK THERMISTOR WHT STOVE LIMIT THERMOSTAT BRN/WHT B 6 WHT 035 MODELS WHT N.C. ORG BRN/RED CHASSIS GROUND GRN/YEL BLK THERMISTOR 025 & 030 MODELS START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY H1-1 SEE VEND APPLICATION DETAIL H1-4 H1-3 24Vac Ret 5 1 WHT BLK WHT/ 8 5 BLK GRY/BLK M 3 MAIN 1 THERM PROT. MAIN 2 AUX 5 SECOND COIL FIRST COIL GAS VALVE RUN FAN MOTOR 4 9 6 1 120V SERVICE BLK/RED RUN MAIN 1 THERM PROT. MAIN 2 AUX CYLINDER MOTOR M 208-240V SERVICE TB1-L2 TB1-L1 4 TB1-N 9 7 COIN DROP 2 (OPTIONAL) 10 11 12 1 2 3 4 H6 5 6 5 4 6 7 9 10 11 12 1 2 3 4 H6 5 7 7 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 4. CONNECT ELECTRICAL SERVICE OF PROPER VOLTAGE AND CURRENT RATING TO TB1. 3. THERMOSTAT: OPENS WHEN TEMPERATURE IS REACHED. 2. MOTORS ARE PROTECTED BY INTERNAL OVERLOADS. 6 6 5 5 4 4 3 3 1 1 H3 H3 TMB1775S 2 2 TMB1775S PLEASE CONSULT CARD READER INSTALLATION MANUAL FOR PROPER CONNECTIONS TO CONTROL 6 CARD READER READY VEND OPTION JUMPER 8 COIN DROP VEND OPTION SINGLE, DUAL AND COIN DROP READY COIN VAULT SWITCH SERVICE DOOR SWITCH 1 2 3 8 COIN DROP 1 (OPTIONAL) 6 4 5 SERVICE DOOR SWITCH 1 2 3 VEND APPLICATION DETAILS 1. DOOR SWITCH: N.O. CONTACT CLOSED WHEN DOOR CLOSED. NOTES: H5 H5 RED N 4N25 GRY GRY BLU L1 H11L1 BRN BRN BLK/RED BLU/BLK BLK WHT TB1 WHT/VLT PNK PNK BLK WHT 108 SERVICE Micro Display Control Troubleshooting Gas Models Schematic 70284701 LT. BLU WHT LT. BLU BRN/ WHT WHT/ BRN 1 3 5 B 9 WHT WHT/BLK 8 8 2 2 1 1 6 6 9 9 5 5 WHT 3 3 WHT RED 2 2 BRN/RED WHT/BLU RED/BLU 1 4 3 1 5 4 4 4 2 LOW BLU BRN FAN MOTOR BRN BLU 2 4 LOW CYLINDER MOTOR GAS VALVE WHT/VLT VLT CABINET LIMIT THERMOSTAT WHT WHT/ BLK GRN/YEL GRN/YEL GRN/YEL WHT WHT/BLK COM. ORG/BRN N.O. N.C. AIR FLOW SWITCH VLT/WHT ORG STOVE LIMIT THERMOSTAT WHT THERMISTOR 7 7 4 4 BLK BRN/WHT 1 1 7 7 8 8 9 9 5 5 10 10 5 4 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT BLU WHT RED 3 3 1 1 GRY GRY BRN SERVICE DOOR SWITCH COIN DROP 2 (OPTIONAL) BLK 2 2 COIN DROP 1 (OPTIONAL) COIN VEND OPTION SINGLE, DUAL AND COIN DROP READY 7 6 5 4 3 2 1 6 5 4 3 2 1 1 3 H3 BLK WHT 2 8 RED 1 1 RED 7 WHT 3 3 WHT 9 10 BLK 2 2 BLK 5 4 3 H4 10 5 10 5 10 9 8 7 6 9 9 12 H3 H6 BLK PNK GRY BRN BLU WHT BLK RED WHT 1 3 2 1 3 2 2 2 8 8 7 7 1 1 2 2 3 3 5 H2 3 GRY GRY 1 SECONDARY FUSE SERVICE DOOR SWITCH PLEASE CONSULT CARD READER INSTALLATION MANUAL FOR PROPER CONNECTION TO CONTROL 3 3 MDC CONTROL 2 6 11 12 13 14 6 11 12 13 14 BRN 4 4 6 H4 WHT/BLU RED/WHT RED/BLU ORG WHT/VLT BRN/RED 4 10 9 8 7 6 5 4 3 1 2 BLK WHT 025 & 030 MODELS 1 1 CARD READER READY VEND OPTION 7 6 5 4 3 2 1 6 5 4 3 2 1 1 3 2 8 7 9 10 5 4 H5 VEND APPLICATION DETAILS GRN/YEL WHT/VLT RED/WHT WHT PNK/BLK WHT/BLU PNK RED RED/BLU BRN ORG/WHT BRN/RED WHT/BRN BRN/WHT 6 2 2 11 PNK 3 3 6 H6 H5 4 4 11 2 2 035 MODELS 11 12 14 13 12 11 6 14 13 12 11 6 WHT/BRN BLK BLK TRANSFORMER RED 1 1 RED RED 4 4 BRN 8 RED 3 3 2 A 7 6 WHT ORG/WHT 22 1 1 4 BLK MOTOR RELAY 4 5 6 3 2 WHT 5 IGNITION CONTROL MODULE GRY/ BLK LT. BLU BLU/ BLK LT. BLU IGNITOR 11 BLU/BLK SERVICE GROUND WHT/BRN LT. BLU 2 2 BRN/WHT VLT/WHT CONNECT BLK/RED TO L1 FOR 120V SERVICE AND TO L2 FOR FOR 208V AND 240V SERVICE. GRY/BLK TB1 BLK/RED GRY/BLK L2 BLK/RED ORG/WHT LT. BLU LT. BLU BRN N BLK/RED BLU/ BLK SERVICE CONNECTION PRIMARY FUSE SECONDARY FUSE 1 WHT/BRN 2 WHT BLK RED/BLK WHT RED/BLK 2 WHT 1 ORG/BRN 1 RED/BLK BLK WHT/ORG 1 2 H1 3 4 10 7 4 10 7 RED BLK BLK RED RED FS-2 FS-1 GND GRN/YEL BLK RED/BLU WHT/BLU 1 2 3 4 5 6 7 1 2 3 4 5 6 12 11 6 4 5 10 9 7 8 2 3 1 14 15 13 5 14 15 13 5 4 H3 H6 H5 BLK BLK/RED WHT BLK WHT/VLT 6 6 9 9 2 1 RED/ BLK RED/WHT LINT PANEL SWITCH N.O. GRY PNK COM. 2 2 BLK 8 12 11 1 8 12 11 1 WHT SEE VEND APPLICATION DETAIL GRY 70284701 PNK L1 1 1 3 3 RED/ WHT 6 6 4 4 5 5 2 2 COM. GRY N.O. N.O. DOOR SWITCH COM. COIN MODELS COIN VAULT SWITCH PNK 2 1 3 6 4 5 CARD READER MODELS BYPASS JUMPER TMB1778S BLK BLK Micro Display Control Troubleshooting Gas Models Connection Diagram 109 L2 SECONDARY FUSE MDL-3.5A 250V 2 BLK BLK RED RED RED/WHT N.O. COM DOOR SWITCH 1 LT. BLU 4 2 RED/WHT RED/BLU N.O. COM LINT PANEL SWITCH SECONDARY FUSE 1.25 T 250V WHT 1.5A 3.5A 3 24V 120V 24V 1 FUSE 250V AGC-2A RED RED RED/BLK RED/BLK RED/BLK FS-2 H2-1 H2-2 H2-5 3 2 1 5 H5 6 8 7 9 10 11 12 HEAT RELAY MOTOR RELAY COIN DROPS 4 RED DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt MDC CONTROL WHT/BLU 2 H1-1 H6 3 4 5 6 SEE VEND APPLICATION DETAIL 1 24VAC H1-3 8 7 6 H3 5 4 7 6 5 4 3 3 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 10 9 START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY H4 WHT FS-1 H2-4 H2-3 H2-6 1 WHT H4 10 9 COM AIR FLOW SWITCH ORG/BRN WHT 8 7 CABINET LIMIT THERMOSTAT N.O. VLT M 4 BRN 5 A 3 7 M 1 4 VLT/WHT 2 STOVE LIMIT THERMOSTAT BRN/WHT B 6 WHT WHT/ BRN 3 STEAM VALVE FAN MOTOR CENTRIFUGAL SWITCH WHT/BLK ORG/ WHT WHT WHT BLK THERMISTOR WHT 035 MODELS WHT N.C. ORG BRN/RED CHASSIS GROUND GRN/YEL BLK THERMISTOR 025 & 030 MODELS 5 8 5 BLK GRY/BLK PRIMARY 24Vac H1-2 1 M 3 RUN MAIN 1 THERM PROT. 5 MAIN 2 AUX FAN MOTOR 4 9 6 BLK/RED BLU/BLK CONNECTION 24Vac Ret H1-4 1 120V SERVICE BLK/RED RUN MAIN 1 THERM PROT. MAIN 2 AUX CYLINDER MOTOR M 208-240V SERVICE TB1-L2 TB1-L1 4 TB1-N © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 9 7 COIN DROP 2 (OPTIONAL) 10 11 12 1 2 3 4 H6 5 6 5 4 6 7 9 10 11 12 1 2 3 4 H6 5 7 7 6 6 5 5 4 4 3. HEATER RELAY OPENS WHEN TEMPERATURE IS REACHED. 2. MOTOR IS PROTECTED BY INTERNAL THERMAL PROTECTOR. 3 3 2 2 1 1 H3 H3 TMB1776S TMB1776S PLEASE CONSULT CARD READER INSTALLATION MANUAL FOR PROPER CONNECTIONS TO CONTROL 6 CARD READER READY VEND OPTION JUMPER 8 COIN DROP VEND OPTION SINGLE, DUAL AND COIN DROP READY COIN VAULT SWITCH SERVICE DOOR SWITCH 1 2 3 8 COIN DROP 1 (OPTIONAL) 6 4 5 SERVICE DOOR SWITCH 1 2 3 VEND APPLICATION DETAILS 1. DOOR SWITCH - CONTACTS CLOSED WHEN DOOR CLOSED. NOTES: H5 H5 GRY GRY 24Vac Ret BRN BRN BLU N 4N25 RED L1 H11L1 BLK WHT TB1 WHT/VLT PNK PNK BLK WHT 110 SERVICE Micro Display Control Troubleshooting Steam Models Schematic 70284701 LT. BLU LT. BLU WHT SERVICE CONNECTION LT. BLU BRN/ WHT WHT/ BRN GRY/ BLK LT. BLU BLU/ BLK 3 1 1 5 4 4 STEAM VALVE BLU/BLK GRN/YEL 4 LOW BLU BRN FAN MOTOR BRN BLU 2 2 4 A 7 5 WHT/VLT VLT 8 9 6 WHT WHT 1 WHT/BLK 4 5 6 3 2 ORG/BRN N.O. N.C. AIR FLOW SWITCH VLT/WHT ORG STOVE LIMIT THERMOSTAT COM. B MOTOR RELAY BLK CABINET LIMIT THERMOSTAT 4 LOW ORG/WHT 22 1 1 GRY/BLK GRN/YEL CYLINDER MOTOR SERVICE GROUND 11 WHT/BRN LT. BLU 2 2 BRN/WHT WHT WHT/ BLK CONNECT BLK/RED TO L1 FOR 120V SERVICE AND TO L2 FOR FOR 208V AND 240V SERVICE. GRY/BLK TB1 BLK/RED BLK/RED BRN L2 BLK/RED BLU/ BLK LT. BLU LT. BLU 8 8 1 1 6 6 9 9 5 5 7 7 THERMISTOR 2 2 VLT/WHT WHT 4 4 3 3 BLK WHT WHT/BLU BRN/RED 10 10 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT BLU 8 RED 3 3 1 1 GRY GRY BRN SERVICE DOOR SWITCH COIN DROP 2 (OPTIONAL) BLK WHT 2 2 COIN VEND OPTION SINGLE, DUAL AND COIN DROP READY 7 6 5 4 3 2 1 6 5 4 3 2 1 1 3 H3 BLK WHT 7 2 9 COIN DROP 1 (OPTIONAL) RED 9 9 H3 H6 H5 BLK PNK GRY BRN BLU WHT BLK RED WHT 2 1 3 2 1 3 2 2 8 8 7 7 1 1 2 2 GRY GRY 1 SERVICE DOOR SWITCH PLEASE CONSULT CARD READER INSTALLATION MANUAL FOR PROPER CONNECTION TO CONTROL 3 3 MDC CONTROL 2 6 11 12 13 14 6 11 12 13 14 BRN 4 4 5 H2 3 WHT/BLU RED/WHT 3 3 6 H4 SECONDARY FUSE 4 10 9 8 7 6 5 4 3 1 2 BLK WHT RED/BLU ORG WHT/VLT BRN/RED 025 & 030 MODELS 1 1 CARD READER READY VEND OPTION 7 6 5 4 3 2 1 6 5 4 3 2 1 1 3 2 8 7 9 10 5 4 1 1 12 RED 5 10 H4 10 5 10 5 10 9 8 7 6 5 4 3 VEND APPLICATION DETAILS GRN/YEL WHT/VLT RED/WHT WHT PNK/BLK WHT/BLU PNK RED RED/BLU BRN ORG/WHT BRN/RED WHT/BRN BRN/WHT 6 BLK 5 5 11 9 9 WHT 8 8 3 3 2 2 7 7 BLK 1 1 WHT 2 2 4 PNK 3 3 6 H6 H5 4 4 11 2 2 035 MODELS 11 12 14 13 12 11 6 14 13 12 11 6 WHT/BRN BRN/WHT BRN ORG/WHT BLK BLK TRANSFORMER RED 2 2 RED/BLU RED RED 1 1 RED 4 4 3 3 PRIMARY FUSE SECONDARY FUSE N WHT/BRN 1 WHT 2 RED/BLK BLK RED/BLK WHT WHT 2 ORG/BRN 1 RED/BLK BLK WHT/ORG 1 2 H1 3 4 10 7 4 10 7 RED BLK BLK RED RED FS-2 FS-1 GND GRN/YEL BLK RED/BLU WHT/BLU 1 2 3 4 5 6 7 1 2 3 4 5 6 12 11 6 4 5 10 9 7 8 2 3 1 14 15 13 5 14 15 13 5 4 H3 H6 H5 BLK BLK WHT BLK/RED WHT/VLT 6 6 9 9 2 1 RED/ BLK RED/WHT LINT PANEL SWITCH N.O. GRY PNK COM. 2 2 BLK 8 12 11 1 8 12 11 1 WHT SEE VEND APPLICATION DETAIL GRY 70284701 PNK L1 RED/ WHT 6 6 4 4 5 5 2 2 1 1 3 3 COM. GRY N.O. N.O. DOOR SWITCH COM. COIN MODELS COIN VAULT SWITCH PNK 2 1 3 6 4 5 CARD READER MODELS BYPASS JUMPER TMB1777S BLK BLK Micro Display Control Troubleshooting Steam Models Connection Diagram 111 WHT LT. BLU L3 HC2 HC1 T1 HC2 T3 HEATING ELEMENTS 1 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 2 3 4 3 3 4 1 5 N.O. 2 JUMPER RED/WHT RED/BLU N.O. COM LINT PANEL SWITCH SECONDARY FUSE 1.25 T 250V 4 6 2 1 4 240V 3 5 6 FS-2 H2-1 H2-2 H2-5 CONFIGURATION JUMPER 2 RED/BLK RED/BLK RED/BLK 230-240V MODELS 1 TRANSFORMER CONFIGURATION JUMPER DETAILS COM 6 WHT 24V 1.5A 5 DOOR SWITCH 24V 4.0A 2 208V CONFIGURATION 2 1 200-208V MODELS 1 1 250V AGC-2A FUSES PRIMARY SEE TRANSFORMER CONFIGURATION JUMPER SECONDARY FUSE MDL-3.5A 250V H5 H4 H6 T3 HC1 H3 T2 HC2 TB1-L3 L3 H2 T2 HC1 L2 BLK/ WHT BLK/ WHT L2 H1 T1 L1 L1 BLK BLK RED RED RED/WHT RED RED L3 3 2 2 1 5 4 H5 6 8 7 COIN DROPS 9 10 11 12 HEAT RELAY MOTOR RELAY DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt MDC CONTROL RED WHT/BLU 24Vac Ret 2 H1-1 H6 3 4 5 6 SEE VEND APPLICATION DETAIL 1 24VAC H4 8 7 6 H3 5 4 7 6 5 4 3 3 2 2 100 OHM 1/4 watt 1 Door Sense Ret TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY 10 9 WHT FS-1 H2-4 H2-3 H2-6 1 WHT H4 10 9 COM AIR FLOW SWITCH ORG/BRN WHT 8 7 CABINET LIMIT THERMOSTAT N.O. VLT M 4 BRN 5 3 14 2 M 1 13 ORG/ WHT WHT WHT BLK WHT/ BRN 3 HC2 HC1 FAN MOTOR CENTRIFUGAL SWITCH THERMISTOR WHT VLT/WHT STOVE LIMIT THERMOSTAT BRN/WHT 6 WHT 035 MODELS WHT N.C. ORG BRN/RED CHASSIS GROUND GRN/YEL BLK THERMISTOR 025 & 030 MODELS START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN. AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma CONTROL POWER SUPPLY H1-3 24Vac Ret CONNECTION 4N25 5 T1 L1 BLK GRY/BLK L2 1 M 3 BLK/WHT MAIN 1 THERM PROT. M T3 AUX 5 M MAIN 2 L3 BLK/RED FAN MOTOR RUN T2 L2 4 TB1-L1 TB1-L3 TB1-L2 BLU/BLK TB1-L1 24Vac H1-2 1 MAIN 1 THERM PROT. AUX MAIN 2 4 LT. BLU H5 H5 3 2 1 5 4 6 COIN DROP 2 (OPTIONAL) 10 11 12 1 2 3 4 H6 5 6 8 7 9 10 11 12 1 2 3 4 H6 5 7 7 6 6 5 5 4 4 3 3 3. HEATER RELAY OPENS WHEN TEMPERATURE IS REACHED. 2. MOTOR IS PROTECTED BY INTERNAL THERMAL PROTECTOR. 2 2 1 1 H3 H3 TMB1774S TMB1774S PLEASE CONSULT CARD READER INSTALLATION MANUAL FOR PROPER CONNECTIONS TO CONTROL 6 CARD READER READY VEND OPTION JUMPER SERVICE DOOR SWITCH 1 2 9 7 COIN DROP VEND OPTION SINGLE, DUAL AND COIN DROP READY COIN VAULT SWITCH SERVICE DOOR SWITCH 3 8 COIN DROP 1 (OPTIONAL) 6 4 5 VEND APPLICATION DETAILS 1. DOOR SWITCH - CONTACTS CLOSED WHEN DOOR CLOSED. NOTES: CYLINDER MOTOR RUN BLU TB1-L2 H11L1 RED L1 WHT/VLT BLK WHT SERVICE GRY GRY BRN BRN H1-4 PNK PNK BLK 112 WHT TB3 Micro Display Control Troubleshooting Electric Models Schematic 70284701 LT. BLU WHT H3 H2 H1 ELECTRIC HEATER H5 BRN/ WHT WHT/ BRN GRY/ BLK LT. BLU H6 H4 LT. BLU 1 NOTE: SEE MOTOR CHART BELOW FOR INTERNAL JUMPER CONNECTIONS FAN MOTOR © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 5 2 1 SERVICE SERVICE GROUND GND 14 13 L2 L3 T3 WHT/BLK T2 L3 L2 L1 T3 T2 T1 T3 T2 T1 BLK BLK/WHT ORG/BRN N.O. N.C. AIR FLOW SWITCH VLT/WHT ORG STOVE LIMIT THERMOSTAT WHT T1 BLK/RED WHT L1 MOTOR CONTACTOR COM. WHT ORG/WHT VLT/WHT WHT/VLT VLT CABINET LIMIT THERMOSTAT GRN/YEL GRN/YEL VLT/WHT CONNECTION NOTE: SEE MOTOR JUMPER CHART BELOW FOR INTERNAL JUMPER CONNECTIONS 3 JUMPER 1 4 4 1 1 CYLINDER MOTOR 3 3 WHT VLT/WHT LT. BLU 2 2 1 1 WHT/BRN BLU/BLK 2 2 BRN/WHT GRY/BLK LT. BLU TB1 BLK/RED BRN BLK/RED BLU/ BLK TB3 HC1 HC2 2 2 1 1 6 6 9 9 5 5 7 7 THERMISTOR L3 L2 L1 L3 L2 L1 8 8 WHT 4 5 6 3 2 1 SEE 5 4 3 2 1 4 4 3 3 3 3 BLK WHT 4 4 1 1 RED BRN/RED WHT/BLU RED/BLU 14 13 12 11 6 14 13 12 11 6 WHT/BRN BRN/WHT BRN ORG/WHT 2 2 TRANSFORMER 6 DETAILS JUMPER TRANSFORMER 4 4 3 3 2 2 BLK/WHT 1 1 BLK/WHT 2 WHT L3 BLK/WHT PRIMARY FUSE 7 7 8 8 10 10 HIGH HIGH N.A. 240V/60HZ 230-240V/50HZ CONF. 6 2 6 2 NONE BLU BLU BRN BRN JUMPER CONNECTION MOTOR JUMPER CHART GRN/YEL WHT/VLT RED/WHT WHT PNK/BLK WHT/BLU PNK RED RED/BLU BRN ORG/WHT BRN/RED WHT/BRN BRN/WHT SERVICE VOLTAGE 5 5 200-208V/60HZ 200V/50HZ 9 9 035 MODELS H4 10 5 10 5 10 9 8 7 6 5 4 3 2 WHT WHT/BRN BLK/WHT BLK/WHT PRIMARY FUSE SECONDARY FUSE WHT/BLU 14 15 13 5 14 15 13 5 6 6 9 9 RED/BLU 8 12 11 1 8 12 11 1 BLK WHT 5 BLU 7 6 5 4 3 2 1 6 5 4 3 2 1 1 3 H3 BLK WHT 8 2 7 RED 9 10 WHT RED 3 3 1 1 GRY GRY BRN SERVICE DOOR SWITCH COIN DROP 2 (OPTIONAL) BLK COIN DROP 1 (OPTIONAL) RED WHT 2 2 1 1 3 3 N.O. GRY PNK RED/WHT LINT PANEL SWITCH COM. 2 2 12 H3 H6 H5 BLK PNK GRY BRN BLU WHT BLK RED WHT 1 3 2 1 3 2 RED/ WHT 6 6 4 4 5 5 2 2 1 1 3 3 COM. GRY N.O. N.O. GRY GRY BRN 2 1 3 BLK BLK CARD READER MODELS BYPASS JUMPER PLEASE CONSULT CARD READER INSTALLATION MANUAL FOR PROPER CONNECTION TO CONTROL 6 4 5 SERVICE DOOR SWITCH DOOR SWITCH COM. COIN MODELS COIN VAULT SWITCH PNK CARD READER READY VEND OPTION 7 6 5 4 3 2 1 6 5 4 3 2 1 1 3 2 8 7 9 10 5 4 6 BLK 4 10 7 4 10 7 1 2 WHT/BLU VEND APPLICATION DETAILS 3 3 4 11 2 2 6 11 12 13 14 6 11 12 13 14 PNK 4 4 2 H1 3 BLK 3 3 1 1 2 3 4 5 6 7 SEE VEND APPLICATION DETAIL WHT 2 2 1 SECONDARY FUSE 2 H3 H6 1 2 3 4 5 6 6 1 1 5 H2 3 MDC CONTROL H5 4 H6 H5 7 7 6 H4 RED/WHT RED/BLU 4 10 9 8 7 6 5 4 12 11 6 4 5 10 9 7 8 2 3 1 11 12 8 8 ORG WHT/VLT BRN/RED 2 WHT 3 1 BLK COIN VEND OPTION SINGLE, DUAL AND COIN DROP READY 9 9 2 2 025 & 030 MODELS 1 1 WHT 1 RED/BLK BLK RED/BLK L2 BRN/RED WHT/ORG BLU/ BLK BLK/ RED WHT WHT 2 ORG/BRN 1 RED/BLK 1 VLT/WHT RED BLK BLK RED RED FS-2 FS-1 GND GRN/YEL BLK BLK BLK WHT L1 RED/BLK BLK/ WHT WHT/VLT GRY 70284701 PNK BLK 2 5 1 2 6 5 6 1 4 4 1 2 1 230-240V MODELS 240V JUMPER 2 TMB1779S 3 3 200V & 208V MODELS 208V JUMPER TRANSFORMER JUMPER DETAILS Micro Display Control Troubleshooting Electric Models Connection Diagram 113 Section 6 NetMaster Troubleshooting WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002 55. No IR Communication IR Communication Single and stacked. Gas and electric heat. Single and three phase power supply. Attempt to communicate with the electronic control from the microwand. No IR Communication Check the following: Is there a response of any kind from the electronic control? NO Aim microwand closer and try again. YES Does the electronic control display E:OF or -C-? Does the control respond? NO - low battery on microwand - is the IR window covered or blocked on the control. - if needed replace the electronic control - is the IR cap properly attached to the microwand. YES -C- Communication sequence checks out. "E:OF" Check the following: - IR communication disabled by manual programming. - Is the IR window on the control covered or blocked. - if needed, change control board. TMB247S TMB247S 114 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting 56. Coins Ignored When Entered Single and stacked units. Gas and electric heat. Single and three phase power supply. Start coin drop diagnostic tests. Does the display on the electronic control increment properly? YES Exit diagnostic testing and reset control. (Prompting for vend price) NO Reconnect and run diagnostic test again. NO Reconnect and run diagnostic test again. NO Is connector H5 on the control firmly seated in its receptacle? YES Is the 3 pin connector between coin drop and control connected correctly? YES Are wires exiting coin drop optical sensor cracked or broken? YES Replace coin drop or optic switch. NO Replace coin drop. If problem still exists then replace the electronic control. 70284701 TMB1843S © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 115 NetMaster Troubleshooting 57. Control Has No Display Gas, steam and electric heat. Single and three phase power supply. (1) Is there power supplied to the unit? NO Plug unit in and start cycle. (6) Is there 24 VAC at the input of the secondary fuse? NO Correct wiring between secondary fuse and transformer. YES YES (7) (2) Is there 120 VAC at input of primary fuses? NO Correct wiring between primary fuse and power supply. Is there 24 VAC at output side of secondary fuse? NO Replace secondary fuse. YES YES (8) (3) NO Is there 120 VAC at output side of the primary fuses? Replace primary fuse(s). Is there 24 VAC across H1-1 & H1-3 on the control? NO Replace Electronic Control. YES YES (4) Is there 120 VAC across terminals 1 & 2 of transformer primary? NO Correct wiring between primary fuse and transformer. Correct wiring between control and secondary fuse. YES (5) Is there 24 VAC across terminals 1 & 4 of transformer secondary? NO Replace transformer. YES TMB249S TMB249S Please see following 2 pages for wiring diagram information. 116 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting Control Has No Display (Sheet 1 of 2) 2 3 5 1 4 6 7 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 117 NetMaster Troubleshooting Control Has No Display (Sheet 2 of 2) TMB269S TMB269S 118 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting 58. Door Open Indicator (1) Is there voltage at H2-1 on the Electronic control? Single and stacked units. Gas, steam and electric heat. Single and three phase supply. Reference voltage checks to transformer neutral. YES Replace Control. NO (6) Is there voltage at the input of the secondary fuse? NO Correct wiring between secondary fuse and transformer. YES (7) Is there power supplied to the unit? NO Plug unit in and run it. YES NO Replace secondary fuse. YES (2) Is there voltage at input of primary fuses? (8) NO Correct wiring between primary fuses and power supply. YES Is there voltage at N.O. of door switch? NO Correct wiring between N.O. and output of secondary fuse. NO Check for proper function of door switch replace if necessary. NO Correct wiring between N.O. on lint panel and COM on door switch. NO Check for proper operation replace if necessary. YES (3) Is there voltage at output side of the primary fuses? (9) NO Replace primary fuse(s). YES With door closed is there voltage to COM of door switch? YES (4) Is there voltage across terminals 1 & 2 of transformer primary? (10) NO Correct wiring between primary fuses and transformer. YES Is there voltage at N.O. of lint panel switch? YES (5) Is there voltage across terminals 2 & 3 of transformer secondary? YES Is there voltage at output side of secondary fuse? (11) NO Replace transformer. Is there voltage at COM of lint panel switch with lint panel closed? YES Correct wiring between H2-1 of electronic control and COM of lint panel switch. TMB1844S Please see following 2 pages for wiring diagram information. 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 119 NetMaster Troubleshooting Door Open Indicator (Sheet 1 of 2) 2 3 4 1 5 6 7 8 120 9 10 11 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting Door Open Indicator (Sheet 2 of 2) TMB270S TMB270S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 121 NetMaster Troubleshooting 59. Motor Will Not Start/Run Motor Start/Run Note: test conducted with vend (1) price satisfied and start button pressed. Is there voltage across H2-1 and H2-6 on the electronic control ? NO Single and stacked units. Gas, electric and steam heat. Single and three phase supply. Refer to "Door open" flow chart. Motor (cylinder/fan)will not start/run Replace electronic Control. (6) Is there voltage across terminals 1 & 4 of the fan motor? YES (2) Is there voltage across H2-4 and H2-6 on the electronic control? NO Replace control. Does the fan motor run? NO Correct wiring between fan motor and motor control relay. YES YES (3) Is there voltage across the coil of the motor control relay? NO Correct wiring to coil of motor relay . 3 phase. Also see note on next page Replace fan motor. YES Is unit equipped with single phase or three phase power supply? YES NO Single phase Three phase. Also see note on next page. (12) Is the unit equipped with single phase or three phase power? Is there supply voltage between L2 & L3 of motor control relay? Single phase (4) NO Is there voltage at terminal 5 of the motor control relay? Correct wiring between terminal 5 and power supply. NO Is there voltage at terminal 8 of motor control relay? Replace motor control relay. Correct wiring between L2, L3 and supply. YES (13) Is there voltage across terminals L2 & T2 and L3 & T3? YES (5) NO YES Replace motor control relay. NO (7) YES Is there voltage at terminal 6 of motor control relay? (10) Is there supply voltage to L1 and L2 of the motor control relay? NO Correct wiring between L1, L2 and power supply. YES (11) YES Replace motor control relay. Correct wiring between terminal 6 of motor control relay and supply. YES (8) Is there voltage at terminal 9 of motor control relay? Is there votlage across L1 & T1 and L2 & T2? NO NO Replace motor control relay. YES NO Note: tests conducted with vend price satisfied and start button pressed. 122 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting 59. Motor Will Not Start/Run (continued) (9) Is there voltage across terminals 1 & 4 of cylinder motor? NO Correct wiring between cylinder motor and motor control relay. YES Does the cylinder motor run? NO Replace cylinder motor. YES Motors are operational. Note: For high voltage three phase supply (380 volts or higher), the cylinder and fan motors are supplied by L1, L2, L3 through the motor relay terminals T1, T2, T3. Make the appropriate adjustments when doing voltage checks. TMB251S TMB251S Please see following 4 pages for wiring diagram information. 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 123 NetMaster Troubleshooting Motor Will Not Start/Run (Sheet 1 of 2) 4 5 1 2 3 124 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting Motor Will Not Start/Run (Sheet 2 of 2) 7 4 5 8 6 9 TMB271S TMB271S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 125 NetMaster Troubleshooting Motor Will Not Start (Sheet 1 of 2) 1 126 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting Motor Will Not Start (Sheet 2 of 2) 12 10 13 11 2 3 6 9 TMB272S TMB272S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 127 NetMaster Troubleshooting 60. Unit Will Not Heat (Gas) Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1) (7) Is there voltage at FS-2 of NetMaster control? NO Correct wiring between FS-2 and COM of lint drawer. YES Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. YES Replace NetMaster control. Replace thermistor. (2) (8) NO Is there voltage at FS-1 of NetMaster control? Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? NO Is the thermistor operational? YES NO (9) Is there voltage at COM of airflow switch? NO Correct wiring between COM of airflow switch and FS-1 of NetMaster control. Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES YES (10) (4) YES Check for proper function of airflow switch and replace if necessary. NO Is there voltage across cabinet limit? YES Replace cabinet limit. NO (5) Is there voltage at terminal 7 of motor control relay? Replace fan motor. YES (3) Is there voltage across COM & N.C. terminal of airflow switch? YES (11) NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. YES Is there voltage to the input side of the stove limit? NO Correct wiring between stove limit and cabinet limit. YES (6) Is there voltage across terminals 7 & 4 of motor control relay? YES Replace motor control relay. NO 128 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting 60. Unit Will Not Heat (Gas) (continued) (12) Is there voltage across the stove limit? YES Replace the stove limit. NO YES Is there a flame? Unit operational. NO (13) Is there voltage to terminal 2 of the Ignition Control Module (ICM)? NO Correct wiring between terminal 2 of ICM and stove limit. YES Note: Make sure unit is not in a lock out condition. (14) Is there voltage at terminal 1 of ICM board? NO Replace ICM board. YES (15) Is there voltage across the coils of the gas valve? NO Correct wiring between gas valve and ICM board. NO Replace gas valve coils or complete gas valve. NO Replace high voltage ignition cable or igniter. YES Is there gas flow through the gas valve? YES Does the igniter spark? YES TM1857S TMB1857S Please see following 2 pages for wiring diagram information. 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 129 NetMaster Troubleshooting Unit Will Not Heat (Gas) (Sheet 1 of 2) 1 7 2 4 5 6 8 3 13 12 10 9 11 130 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting Unit Will Not Heat (Gas) (Sheet 2 of 2) 7 4 5 6 8 13 12 10 14 9 11 15 TMB273S TMB273S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 131 NetMaster Troubleshooting 61. Unit Will Not Heat (Steam) Single and stacked units. Note: Tests are conducted with unit running and calling for heat. Unit Will Not Heat (Steam) All voltage checks are referenced to transformer neutral. (1) (7) Is there voltage on FS-2 of electronic control? NO Correct wiring between FS-2 and COM of lint drawer. YES Replace electronic control. Replace thermistor. (2) (9) NO Correct wiring between COM of airflow switch and FS-1 of electronic control. Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal "5" of fan motor centrifugal switch. YES (10) (4) YES Check for proper function of airflow switch and replace if necessary. NO Is there voltage across cabinet limit? YES Replace cabinet limit. NO (5) Is there voltage on terminal 7 of motor control relay? Replace fan motor. NO YES Is there voltage across COM & N.C. terminal of airflow switch? YES YES (3) Is there voltage on COM of airflow switch? Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay. YES Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? NO Is the thermistor operational? YES NO (8) NO Is there voltage on FS-1 of electronic control? Is there voltage on terminal 3 of fan motor centrifugal switch? (11) NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. YES Is there voltage to the input side of the stove limit? NO Correct wiring between stove limit and cabinet limit. YES (6) Is there voltage across terminals 7 & 4 of motor control relay? YES Replace motor control relay. NO 132 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting 61. Unit Will Not Heat (Steam) (continued) No Heat continued. (12) Is there voltage across the stove limit? YES Replace the stove limit. NO (13) Is there voltage across the coil of the steam valve? NO Correct wiring between steam valve and stove limit. YES Does the steam valve open allowing steam to flow? No Replace steam valve. Unit operational. TMB253S TMB253S Please see following 2 pages for wiring diagram information. 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 133 NetMaster Troubleshooting Unit Will Not Heat (Steam) (Sheet 1 of 2) 1 7 2 4 5 6 3 10 12 9 11 134 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting Unit Will Not Heat (Steam) (Sheet 2 of 2) 7 6 8 13 TMB274S TMB274S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 135 NetMaster Troubleshooting 62. Unit Will Not Heat (Electric) Single and stacked units. Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1) Is there voltage at FS-2 of EDC control? (7) NO Correct wiring between FS-2 and COM of lint panel switch. YES Is there voltage at terminal 3 of fan motor centrifugal switch? NO Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 13 of motor control relay. YES Replace EDC control. Replace thermistor. (2) (8) NO Is there voltage on FS-1 of EDC control? Is the thermistor operational? YES Is there voltage across terminals 3 & 5 of fan motor centrifugal switch? NO NO (9) NO Correct wiring between COM of airflow switch and FS-1 of EDC control. YES Is there voltage to the input side of the cabinet limit? NO Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch. YES (10) (4) Is there voltage across COM & N.C. terminal of airflow switch? Replace fan motor. YES (3) Is there voltage at COM of airflow switch? YES YES Check for proper function of airflow switch and replace if necessary. NO Is there voltage across cabinet limit? YES Replace cabinet limit. NO (5) Is there voltage at terminal 14 of motor control relay? (11) NO Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch. YES Is there voltage to the input side of the stove limit? NO Correct wiring between stove limit and cabinet limit. YES (6) Is there voltage across terminals 13 & 14 of motor control relay? YES Replace motor control relay. NO 136 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting 62. Unit Will Not Heat (Electric) (continued) No Heat continued. Note: Please make the oppropriate adjustments if your unit is single phase. (12) ect wiring en terminal 3 an motor ugal switch rminal 13 of control relay. Is there voltage across the stove limit? YES Replace the stove limit. NO (13) Is there voltage across the coil(s) of the heater contactor(s)? NO Correct wiring between heater cotactor and stove limit. NO Correct wiring between HC1 and Line voltage. NO Correct wiring between HC2 and Line voltage. NO Check for proper operation of contactors, replace them if necessary. ce fan motor. YES (14) ect wiring en cabinet nd terminal 5 an motor ugal switch. Is there voltage to the L1, L2 and L3 terminals of HC1? YES (15) Is there voltage to the L1, L2 and L3 terminals of HC2? ace cabinet limit. YES (16)(17)(18) Is there voltage across T1 & T2, T2 & T3 and T3 & T1? rect wiring en stove limit abinet limit. Unit is operational YES Do all elements produce heat? NO Check elements for shorts or opens. Check wires between contactors and elements. YES TMB1845S TMB1845S Please see following 2 pages for wiring diagram information. 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 137 NetMaster Troubleshooting Unit Will Not Heat (Electric) (Sheet 1 of 2) 14 1 16 17 15 18 2 4 3 10 9 138 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 70284701 NetMaster Troubleshooting Unit Will Not Heat (Electric) (Sheet 2 of 2) 7 4 5 6 8 3 13 10 12 9 11 TMB275S TMB275S 70284701 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 139