Viking Technical Information

Transcript

Viking Technical Information - Refrigerator VCSB5481# FDSB5481# ' I^EKST"- "^ °r Pr°Perty dam^e.always contact an authorized technician for servicing or • Refer to Service Manual for design, disassembly, ice maker, safety, testing and troubleshooting information. WARNINGS SHnVp°^neCtriCal Sh°Ck'swttch Whi'hbefore Can C3USe S6VereWires personal irWduring or death.disconnect power refrigerator using power servicing. removed disassembly must be tore placed on proper terminals to insure correct earthing and polarization. After servicinga lcl'ullne" reconnect power using power switch. DC COMPRESSOR - DO NOT CONNECT TO 120 VAC ->-;-'\ Diagnostic LED |W j <"\ j W»Nj LOU GENERAL SPECIFICATIONS Model VCSB5481# FDSB5481# Internal Volume Capacity 27.5 ft A 3 Electrical Requirements Refrigerant Type 115 VAC,60Hz and 9.9 AMPS Refrigerant Charge Overall Width (Includes Extrusions) See Rating Label 48 inches Overall Depth without Handle (Includes Door Extrusions) 24 inches Overall Height (Rollers to top of air grille) 82 3/4 to 84 1/16 inches HFC-134a RETURN TECHNICAL SHEET TO ENVELOPE AFTER SERVICE Display Panel Operation Indicates a pad was pressed, command read and accepted. Turn off entry tone Keyboard Entry Tone by pressing and holding "Activate Controls" pad for 3to 5seconds. Command Accepted Tone Three shorttones indicate command accepted. 1 Activates control panel. If activated, the Display Panel on the controller will remain on even after the door is closed. Control panel remains active at least 10 minutes. Activate controls Pad jnA..,cm 2. Turns off Power Up Alarm (flashing seven segment display and POWER), after power isfirst plugged in orafter power outage. Note: All pads.except Alarm Off,are inactive until Activate Controls is pressed. Activates freezer temperature setting mode. 1. Freezer indicator light will glow. Freezer temperature setting will be dis played. Factory setting is 0°F. 2. Change freezer temperature setting by pressing Higher Temp or Lower Temp pad. Activates refrigerator temperature setting mode. 1. Refrigerator indicator light will glow. Refrigerator temperature setting will be displayed. Factory setting is 38° F. 2. Change refrigerator temperature setting by pressing Higher Temp or Lower Temp pad. Raises temperature settings one degree at a time. If entry tone is on,tone will sound at each temperature setting until top level is reached. Higher Temp Pad 1. Turn on temperature setting function of control panel by pressing Higher Temp pad. 2. Press and hold Higher Temp pad to raise temperature setting at a faster rate. Lowers temperature settings one degree at a time. Ifentry tone is on, tone wil sound at each temperature setting until bottom level is reached. Lower Temp Pad 1. Turn on temperature setting function of control panel by pressing Lower Temp pad. 2. Press and hold Lower Temp pad to lower temperature setting at a faster rate. Activates Maximum freezer mode, setting freezer temperature to coldest set ting. Current factory setting is 4 hours. Max Frz Pad 1. Max Frz indicator light will glow. 2. To turn off Max Frz.press Max Frz pad again. 3. To adjust maximum freezer duration,referto Program Mode B functions. Activates Maximum refrigerator mode.setting refrigerator to coldest setting. Cur rent factory setting is 4 hours. Max Ref Pad 1. Max Ref indicatorlight will glow. 2. To turn off Max Ref.press Max Ref pad again. 3 rIonsdJUSt max'mum refn'9erator duration,refer to Program Mode Bfunc- Display Panel Operation (Continued) Press and release "FAST COOL" pad. 1. Switches to high compressor speed (115 hz) and uses Max Frz and Max Ref set points to pull temperatures down quickly. 2. This condition continues for a specificperiod of time (factory default is Fast Cool Pad 2 hours) that can be set by technician. Turns off alarm signals. See Alarms section to interpret alarm signals. 1. Alarm Off Pad Press and hold Alarm Off pad for 3 seconds to deactivate audible Door Open alarm. To reactivate Door Open alarm,press and hold Alarm Off pad for 3 seconds. 2. IfAlarm Offpad is pressed and condition causing alarm is not corrected,alarm will reset. 1. Display Off Pad Deactivates control panel. 2. Deactivates temperature indication area of control panel. DISPLAY INDICATOR 0°F REFRIGERATOR FREEZER MAX FRZ MAX FAST COOL SAB SHOW REF •JETS — DOOR - OPEN POWER HIGH TEMP DISPLAY PANEL KEYBOARD DOOR Ol'l \ BBB* I'owki; ACTIVATE CONTROLS ELECTRONIC FUNCTIONAL DESCRIPTION Power Disconnect Switch Use power disconnect switch to disconnect power without unplugging refrigerator. Power disconnect switch is locatedbehind air grille on top right side. Refrigerator is shipped with power disconnect switch in the on position. POWER SWITCH Alarms Power Loss Alarm After power isinitially applied to the unit, ifa power loss isexperienced, the temperature (7segment display characters) and the "POWER" indicator on the LED display will flash (1 sec. on and 1 sec. off). All other indicators will be off. Press andrelease the"ALARM OFF" pad, this will turn the "POWER" indicator offand thecurrent temperature will bedisplayed. Door Open Alarm Jf the control senses that a door is open for a period of time equal to the DOOR OPEN DELAY (factory set to 3 min utes), the controller invokes an alarm tone that beeps continuously with a pattern of 330ms on, 250ms off, 300 ms on, 1250ms off, and "DOOR" indicator illuminates. 1. Turn off Door Open audible alarm by pressing Alarm Off pad or by closing door 2. Deactivate Door Open audible alarm by pressing Activate Controls pad and then press and hold Alarm Off pad for 3 seconds. 3. Door alarm delay can be adjusted in Program Mode B. High Temperature Alarm When the controller detects critical temperature in either the refrigerator (above 50 deg F) or freezer (above 15deg F ) for a du ration of 2 hours, an Alarm will sound ( 1sec. on and 1 sec. off continuously ). The "HIGFI TEMP" indicator on LED will come on and "REFRIGERATOR" or "FREF2ZER" indicator on LED will flash (1 sec. on and 1sec. off) to accompany the audible alarm. 1. Alarm tone stops if temperature(s) falls below levels indicated above. 2. The indicators will continue to display as described above until "ALARM OFF" pad is pressed and released. Thermistor Alarm When the controller detects an open thermistor, five beeps (300 ms on, 300 ms off) will occur, the LED will display "oPn" in the temperature area and the applicable "REFRIGERATOR" or "FREEZER" indicator will illuminate, indicating the faulty thermistor location. When the controller detects a shorted thermistor, five beeps (300 ms on, 300 ms off) will occur, the LED will display "Shr" in the temperaturearea and the applicable "REFRIGERATOR" or "FREEZER" indicator will illuminate, indicating the faulty thermistor location. Thecontroller will still maintain temperature control and defrost operations in both sections of the unit until repair is accom plished, regardless of whether the thermistor is open or shorted. In the section where faulty thermistor is located, unit will be operated as if the cut-out temperature is never reached, while the other section will be unaffected and operate normally. Temperature Control Operation For any temperature setting,outputs will be turned off/on based on cut-in/cut-out temperature determined by resistance levels of freezer and refrigerator thermistors. Refrigerator and Freezer Thermistor (NTC) As temperature decreases.resistance increases. As temperature increases,resistance decreases. NOTE: Openor shorted thermistor will result in unitcontinuing to cool, thesection containing the faulty thermistor will never obtaincutout and will continue to try and reach it, this could result in freezing up if not repaired in a timely manner. Temperature Control Operation (continued) DegF DegC K-Ohms Deg F DegC K-Ohms Deg F -24 -31 565 10 -12 185 -22 -30 531 12 -11 175 -20 -29 499 14 -10 165 -18 -28 469 16 -9 157 -16 -27 441 18 -8 148 -15 -26 415 19 -7 141 -13 -25 391 21 -6 -11 -24 368 23 -5 -9 -23 347 25 -4 DegC K-Ohms 45 7 69 46 8 65 48 9 62 50 10 59 52 11 56 54 12 34 133 55 13 51 126 57 14 49 120 59 15 47 -8 -22 327 27 -3 114 61 16 44 -6 -21 308 28 -2 108 63 17 42 -4 -20 291 30 -1 103 64 18 41 -2 -19 274 32 0 97 66 19 39 0 -18 259 34 1 93 68 20 37 1 -17 245 36 2 88 70 21 35 37 3 84 72 22 34 3 -16 231 5 -15 218 39 4 80 73 23 32 7 -14 206 41 5 76 75 24 31 9 -13 195 43 6 72 77 25 30 Freezer temperature setting and thermistor value will determine if compressor/condenser fan and evaporator fan switches are open or closed. Compressor/condenser fan switch must be open for 6 minutes before switch can close again (compressor dwell time). Refrigerator temperature setting and thermistor value will determine if fresh food fan switch is open or closed. Cut-out and cut-in temperature values must be reached and maintained for 15 seconds before output state will change (digital delay). Refrigerator and freezer control calibration can be adjusted in Program Mode C. 548 non-dispenser Model code Set in Mode C 348 548 non-dispenser offsets Ref offset °F Frz offset °F -4 -5 Set in Mode B 548 non-dispenser REF / FRZ Cut-in & Cut-out table Ref Cut-in Frz Cut-Out Frz Cut-In °F± 1.5" °F±1.5° °F±1.5° °F± 1.5° -6 6 -7 7 Ref Cut-Out Set in Mode C Program Mode The Viking refrigeration control supports programmable options and EEPROM settings which are accessed via Pro gram Mode. There are three modes; Mode A, Mode B, and Mode C. Several options/setting are accessible ineach mode. The specifics of each mode are described below. Accessing Program Mode A Enable keypad by pressing and releasing "ACTIVATE CONTROLS" , press the FAST COOL key once, and within five (5) seconds press HIGHER, LOWER, HIGHER and LOWER. The controller will switch to Program Mode A. The 7-segment characters in the LED display will show "PrA" andan audio confirmation will sound three times (300ms on, 300ms off). Mode A Options (the following are accessed after mode A is entered) Mode A Values Remarks and procedures Read Only Press "REF TEMP" key once to display raw thermistor temperature with the offset, no filtering applied. "REFRIGERATOR" illuminates along Parameter DisplayRef Temperature with numerical value. Display Frz Read Only Temperature Press "FRZ TEMP" key once to display raw thermistor temperature with the offset, no filtering applied. "FREEZER" illuminates along with numerical value. Change defrost type Adaptive or Conventional Press FAST COOL key once to show the current type. The LED display will show "Add" for adaptive and "Cnd" for conventional. Adjustment - Press FAST COOL key to toggle between adaptive and conventional defrost types. Adjust 4 to 24 hours Conventional in one hour Defrost increments Press and hold ALARM OFF key for three (3) seconds. The display will initially show "Cd". Adjustment - Press HIGHER or LOWER keyonce to view and adjust CRTD value. Exit - Press ACTIVATE CONTROLS key once. The display will show "PrA" to indicate control is still in Program Mode A. Adjust Compressor LowSpeed Frequency set to 75 HZ Press DISPLAY OFF key once. The displaywill initiallyshow "CLF". Adjustment - Press HIGHER or LOWER key once to view and adjust value. Holding the HIGHER or LOWER key will adjust values in incre ments of 5. Exit - Press ACTIVATE CONTROLS keyonce. The display will show "PrA" to indicate control is still in Program Mode A. Display software version Read Only Press and holde DISPLAY OFF for three (3) seconds to show the soft wareversion on the temperature display. Pressing HIGHER or LOWER will cycle between a letter prefix and a two digit version as follows: "A" + the major version, "b" + the minor version, "C" + the build number. Mode A Values Remarks and procedures Parameter Refrigerator 1°F to 10°F in Press and hold "ALARM OFF" and "HIGHER" at same time for three and Freezer increments of seconds which will result in "OH" being displayed . Cut-in 1°F Adjustment -Press "REF TEMP" pad once to select the refrigerator section, this will result in "REFRIGERATOR" being illuminated on the display along with the current refrigerator cut-in value. Using the "HIGHER and LOWER" pads make sure this value is 6°F. Adjustment -Press "FRZ TEMP" pad once to select the freezer section, this will result in "REFRIGERATOR" extinguishing and "FREEZER" illuminating on the display along with the current freezer cut-in value. Using the "HIGHER and LOWER" pads make sure the value is 7°E Exit - Press ACTIVATE CONTROLS key once. The display will show "PrA" to indicate control is still in Program Mode A. Refrigerator -10°Fto-l°F and Freezer in increments Cut-out ofl°F Press and hold "ALARM OFF" and "LOWER" at same time for three seconds which will result in "COH" being displayed . Adjustment -Press "REF TEMP" pad once to select the refrigerator section, this will result in "REFRIGERATOR" being illuminated on the display along with the current refrigerator cut-out value. Using the "HIGHER and LOWER" pads make sure this value is -6°F. Adjustment -Press "FRZ TEMP" pad once to select the freezer section, this will result in "REFRIGERATOR" extinguishing and "FREEZER" illuminating on the display along with the current freezer cut-out value. Using the "HIGHER and LOWER" pads make sure the value is -7°F. Exit - Press ACTIVATE CONTROLS key once. The display will show "PrA" to indicate control is still in Program Mode A. Exiting Program Mode A 1. Press and hold the ACTIVATE CONTROLS key for three (3) seconds. The control will change from Program Mode Ato Normal Mode and any changes made in Program Mode will be saved to EEPROM. 2. If the keypad is not used for ten (10) minutes, the control will automatically change from Pro gram Mode Ato Normal Mode and any changes made in Program Mode will not be saved to EEPROM. Accessing Program Mode B When the controller is in Program Mode A, press the "ACTIVATE CONTROLS" key once. The controller will switch to Program Mode B. The 7-segment characters in the LED display will show "Prb". Mode B Options (the following are accessed after mode B is entered) Values Remarks and procedures Adjust Freezer -30 to 30F in Press FRZ TEMP keyonce. The FREEZER indicator will illuminate and Temperature IF Offset increments ModeB Parameter Adjust Refrigerator -30 to 30F in Temperature increments IF the current value will be displayed. While the value is being displayed, the °F indicator shall be illuminated. Adjustment - Press HIGHER or LOWER key once to adjust value to -5. Press REF TEMP key once. The REFRIGERATOR indicator will illu minate and the current value will be displayed. While the value is being displayed, the °F indicator shall be illuminated. Offset | Adjust MAX FRZ Duration 1 to 20 hrs in lhr Adjustment - Press HIGHER or LOWER key once to adjust value to -4. Press MAX FRZ key once. The MAX FRZ indicator will illuminate and the current value will be displayed. increments Adjust MAX REF Duration 1 to 20 hrs in lhr Adjustment - Press HIGHER or LOWER key once to adjust value. (6 hours is factory setting) Press MAX REF key once. The MAX REF indicator will illuminate and the current value will be displayed. increments Adjustment - Press HIGHER or LOWER key once to adjust value. ( 4 hours is factory setting) Adjust FAST 1 to 20 hrs in COOL lhr Duration increments Entry - Press FAST COOL key once. The FAST COOL indicator will il luminate and the current valuewill be displayed. Adjustment - Press HIGHERor LOWER key once to adjust value (2 hours is factory setting). Adjust Door 1 to 20 min Press ALARM OFF key once. The DOOR OPEN indicator will illumi Open Alarm with 1 min nate and the current value will be displayed. Delay increments Adjustment - Press HIGHER or LOWER key once to adjust value ( 3 minutes is factory setting ). 8 Exiting Program Mode B 1. Press and hold the ACTIVATE CONTROLS key for three (3) seconds. The control will change from Program Mode B to Normal Mode and any changes made in Program Mode will be saved to EEPROM. 2. Press the ACTIVATE CONTROLS key once. The control will change from Program Mode B to Program Mode A and any changes made in Program Mode will be saved to EEPROM. 3. If the keypad is not used for ten (10) minutes, the control will automatically change from Pro gram Mode B to Normal Mode and any changes made in Program Mode will not be saved to EEPROM. Accessing Program Mode C When the controller is in Program Mode B, press and hold the ALARM OFF key for 3 seconds. The con troller will switch to Program Mode C. The 7- segment characters in the LED display will show "PrC". Mode C Options (the following are accessed after mode C is entered) ModeC Remarks and procedures Values Parameter Change Model code Pressing either FRZ TEMP or REF TEMP will display the current model Model per Model type. Type 42 " SxS Code =348 Ajdustment - Selecting higher will select the next model configuration in the list, going to the first selection if the last model is currently se lected. Pressing lower will select the previous model configuration in the list, going to the end of the list if the first model is selected. The REFRIG ERATOR and FREEZER indicators will illuminate based on whether or not the currently selected model supports the associated function. Set to model code 348. If the configuration is changed, the default settings will be loaded for the selected model configuration . NOTE: Setting the proper model code above will automatically set the following inputs to the control board. VCC low speed freq Refrigerator cut-in Freezer offset Refrigerator cut-out Refrigerator offset Freezer cut-in Freezer cut-out Refrigerator Default Temp Freezer Default Temp SETTING THE MODEL CODE IS REQUIRED WHEN REPLACING THE LOW VOLTAGE BOARD Mode C Options (the following are accessed after mode C is entered), continued Mode C Pa Remarks and procedures Values rameter Adjust Freezer -30 to 30F in Upper Temperature IF Press and hold MAX FRZ and while holding that key press and hold HIGHER key for three (3) seconds. The display will initially show "FUL". increments Adjustment - Press HIGHER or LOWER key once to view and adjust Limit value. While the value is being displayed, the °F indicator shall be illu minated. Factory setting is 7. Exit - Press ACTIVATE CONTROLS key once. The display will show Adjust Freezer -30 to 30F in Lower IF Temperature increments "PrC" to indicate control is still in Program Mode C. Press and hold MAX FRZand while holding that key press and hold LOWER keyfor three (3) seconds. The display will initially show "FLL". Adjustment - Press HIGHER or LOWER key once to view and adjust limit value. While the value is being displayed, the °F indicator shall be illu minated. Factory setting is -5. Adjust Refrigerator 33 to 50F in Upper Temperature increments IF Exit - Press ACTIVATE CONTROLS key once. The display will show "PrC" to indicate control is still in Program Mode C. Press and hold MAX REF and while holding that key press and hold HIGHER keyfor three (3) seconds. The display will initially show "rUL". Adjustment - Press HIGHER or LOWER key once to view and adjust value. While the value is being displayed, the °F indicator shall be illu minated. Factory setting is 47. limit Exit - Press ACTIVATE CONTROLS key once. The display will show "PrC" to indicate control is still in Program Mode C. Adjust Refrigerator 33 to 50F in Lower increments IF Temperature limit Press and hold MAX REF and while holding that key press and hold LOWER key for three (3) seconds. The display will initially show "rLL". Adjustment - Press HIGHER or LOWER key once to view and adjust value. While the value is being displayed, the °F indicator shall be illu minated. Factory setting is 33. Exit - Press ACTIVATE CONTROLS key once. The display will show "PrC" to indicate control is still in Program Mode C. Exiting Program Mode C 1. Press and hold the ACTIVATE CONTROLS key for three (3) seconds. The control will change from Program Mode C to Normal Mode and any changes made in Program Mode will be saved to EE PROM. 2. Press the ACTIVATE CONTROLS key once. The control will change from Program Mode C to Pro gram Mode A and any changes made in Program Mode will be saved to EEPROM. 3. If the keypad is not used for ten (10) minutes, the control will automatically change from Program Mode C to Normal Mode and any changes made in Program Mode will not be saved to EEPROM. 10 Testing Mode Forced defrost With unit in normal mode, press and release activate controls to enable keypad. Press and hold the "HIGH ER" key and then without releasing the HIGHER key, press the "DISPLAY OFF" key for three seconds. The control will beep three times to alert user that function has been enabled. Unit immediately suspends all coolingoperations, compressor turns off and evaporator fan, condensor fan, and refrigerator crossover fan all shut off. Defrost heaters are enabled dependant upon satisfaction of defrost terminator. Forced Pull-Down (Forced Compressor Start) With unit in normal mode, press and release activate controls to enable keypad. Press and hold the LOW ER" key and then without releasing the LOWER key, press the "DISPLAY OFF" key for three seconds. The control will beep three times to alert user that function has been enabled. Unit immediately energizes compressor, condensor fan, refrigerator cross over fan and evaporator fans in an effort to reach cut-out temperature in both sections of the unit. Compressor dwell time is ignored. Showroom Mode The Showroom Mode is entered by first pressing and holding the "ACTIVATE CONTROLS" key, and then without releasing the ACTIVATE CONTROLS key, simultaneously pressing both the "HIGHER" and "ALARM OFF" keys for three (3) seconds. The control shall beep three times and the SHOW indicator will be displayed on the alpha-numeric display to alert the user that Showroom Mode has been entered. TheShowroom Mode is used for the purpose of displaying models and allowing a user to interact with the product on the sales floor without having the temperature control and defrost operations active. Showroom Mode is exited by first pressing and holding the "ACTIVATE CONTROLS" key, and then with out releasing the ACTIVATE CONTROLS key, simultaneously pressing both the "HIGHER" and "ALARM OFF" keys for three (3) seconds. The control shall beep three times and the SHOW indicator will disappear and the actual compartment temperatures will be shown in the displays Sabbath Mode The Sabbath Mode is entered by first pressing and holding the "ACTIVATE CONTROLS" key, and then without releasing the ACTIVATE CONTROLS key, simultaneously pressing the "DISPLAY OFF" key for three (3) seconds. The control shall beep three times and the SAB indicator will be displayed on the alpha-numeric display to alert the user thatSabbath Mode has been entered. The Sabbath Mode is used for the purpose ofcontrolling the refrigeration units without interior lights, changes to the LED display, and enunciators. The Sabbath Mode isexited by first pressing and holding the "ACTIVATE CONTROLS" key, and then with out releasing the ACTIVATE CONTROLS key, simultaneously pressing the "DISPLAY OFF" key for three (3) seconds. The SAB indicator will disappear and anyactive alarm conditions that were present prior to or during Sabbath Mode will be indicated to the user audibly and visually. 11 A WARNING To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing. • Wiring diagram continued on page 12 12 A WARNING To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing 13 A WARNING To avoid risk ofelectrical shock, personal injury or death, disconnect power to unit before servicing. High Voltage Board eh1" •" Ell Grn/Yel Chassis Grnd. CHASSIS 3110 Component Test Point Reading Refrigerator/Condensate E1-E11 24VDC E2-E11 115 VAC Fans Evaporator Fans El Violet DC Fans E4 Blue Compressor E14 Aux heater (only used on Dispenser models) E3 Black Showroom Sw LI E3-E11 115 VAC Compressor/ E4-E11 115 VAC E5-E11 C VAC E5-E11 115 VAC K-jv-r E6-E11 115 VAC Ref Dcor Switch (Top/ Right Light) E7-E11 115 VAC Freezer Door Switch E3-E11 115 VAC Neutral In E9-E11 N/A Condenser Fan D:;'os: Terminator (Open) Defrost Terminator (Closed) j-'•:.". E2 Yellow Evaporator Fan E7 Rd/Wh Ref Door Sw E8 Vio/Wh Frz Door Sw n in mi (Left Light) Line In e::-E" 115 VAC Ground Ell >l,A Neutral ln-L(ghts E12-E1'i '. A Neutral Out-Lights E13-E11 115 VAC Aux Heater EU-E11 115 VAC E9 White Neutral NEUTRAL :i:m—m E10 Black LI LI E5 Brown Defrost Terminator DEFROST TERMINATOR- E6 Orange Defrost Heater E12 WH Cabinet Lights Common E13 WH/BK Cabinet Lights 14 A To avoid WARNING risk ofelectrical shock, personal injury or death, disconnect power to unit before servicing. VCC3 Inverter Diagnostic Codes Code Compressor Possible Fault Service Action Status 1 Flash ON (every 15 seconds) 1. No failure detected OFF 1. No signal from control board 2. Open Thermistor Ifsystem is not working properly, check other refrig eration components. If refrigerator settings (thermistor conditions) are at levels in which the compressor should be "ON". • Unplug inverter from power supply and wait for 2 minutes, reconnect the inverter to the power supply and wait for 12 minutes. • If inverterstillshows 1 flash code and compressor is OFF, then check the control board. 1. No signal (every 5 from the con • Check frequency cable connection • If frequency cable connection is good , replace in seconds) trol board verter. 2 Flashes 3 Flashes OFF OFF (every 5 1. Compressor / inverter cable open circuit 2. Compressor seconds) winding open • Check compressor/inverter cable connection • Check compressor winding resistances (among the 3 terminal hermetic pins) • If resistances are within specifications and compres sor/inverter cable is OK, replace inverter. circuit 4 Flashes OFF (every 5 seconds) 1. Compressor damaged / system damaged • Check compressor input power • Check compressor winding resistances • Check leakage current between hermetic terminal pins and compressor shell. • If resistance or leakage current is out of spec, replace the compressor. • If resistance and leakage current are within spec, check inverter/compressor cable for open circuit. • Unplug inverter from power supply and wait for 2 minutes, reconnect the inverter to the power supply and wait for 12 minutes. • If inverter still shows 4 flash code and compressor is OFF, replace the compressor. No Flash OFF 1. No input power 2. Inverter damaged • Check the input power (115V) • If there is no signal, check input power connections • If voltage is within specs, unplug inverterfrom power supply and wait for 2 minutes, reconnect the inverter to the power supply and wait for 12 minutes. • If inverter still shows no flash code and compressor is OFF, change the inverter. •If the inverter shows no flash code and the compressor 1 is ON, diagnostic function is not working properly. 15 | A WARNING 1 To avoid risk ofelectrical shock, personal injury or death, disconnect power to unit before servicing. Icemaker OPERATION Thermostat closes when temperature reaches 17° ± 3° F (-8.3° ± 1.5° C). Current flows through thermostat to motor, see "Icemaker wiring diagram." Motor islinked with drive gear. From module, there are copper contacts that ride on copper strips on backside ofdrive gear. As the drive gear rotates, contacts will make or break a circuit (track) to the copper strips to operate the icemaker. .. . M ii Wiring Harness Support Screws - Shutoff Arrr ~ r -*'w»™ All components can be tested without removing icemaker or moving refrigerator away from installed posi tion. Remove the cover to access test points shown in Figure below. N - Neutral side of line voltage M - Motor connection H - Heater connection T - Thermostat connection L - LI (hot)side of line voltage V - Water valve connection JUMPER insulated 14 gauge wire, with ends stripped back 5/8" TEST PROCEDURE Verify icemaker has power (hold freezer door switch in closed position to supplypower), shut offarm is down, and freezer is cold enough to close bimetal thermostat (below 17° F). • Test point L and N will verify 120 volts to icemaker module. • Test point T and H will verifybimetal thermostat is open or closed. • Verify that test probe goes in at least 1/2" into test point to ensure proper contact. CAUTION A To avoid icemaker damage, do not short any contacts together other than those specified. 1. Using jumper (see jumper above) short T and Hto run motor. Ifmotor runs with jumper but did not run in normal operation, replace bimetal thermostat. Ifmotor does not run, replace faulty motor. 2. Leave jumper in for halfof revolution ofejector blades. Touch heater mold, if it feels warm, heater is working properly. 3. Remove jumper, water valve will be energized in last half ofrevolution, ifmold heater has not failed. 16 A WARNING To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing. SPECIFICATIONS Mold heater 185 watts, 264 ohms Thermostat closes 17° ± 3° F (-8° ± 1° C) Bimetal opens at 32° + 3" F (0°+ 1" C) Water fill is 140cc, 7.5 seconds Motor cycle, stamped in circuit Plug in connectors One revolution of blades takes 3 minutes plus stall time on ice (eject and water fill). Module Ohmmeter Checks No power to icemakerand Ejector blades in end of cycle Test Points Component Module Position Ohms L-H Mold & Heater Attached to support 264 L-M Motor Separate from heater 16,100 Module Voltage checks with motor or test light power to icemaker Component Line Voltage 0 Volts L-N Module Power On Power Off T-H Bimetal Open Closed L-H Heater On Off L-M Motor On Off N-V Water valve On Off !Test Points If water fill is inadequate, less than 140cc, it can be increased by turning the water fill adjustment screw (see photo to left) in a counterclockwise direction. If water fill is too great it can be decreased by turning screw in a clockwise direction. One half turn will adjust the fill by approxi mately two thirds of an ounce. Water fill adjustment screw 17 Icemaker Troubleshooting Chart Ice Problems Jammed cubes (small or oversized cubes) Hollow cubes Action Adjust fill level or level icemaker or refrigerator Adjust for low fill or remove restrictions in supply line. Level ice maker or refrigerator. Remove obstructions to air flow at fill end so it freezes before thermostat end. Ice build up on ejector blades Usually caused by hollow cubes. See hollow cubes above. Remove icemaker to thaw out. Cubes falling back into mold during ejection Cubes falling over back of icemaker Ifsomecubes aresmall, check fill and level. Check if fill cup is displaced and blocking ice. Fix fill cupor replace icemaker. Check if fill cup is displaced and blocking ice. Fix fill cup or replace icemaker. Power Problems Action No power to icemaker at connector socket Determine discontinuity by tracing power. No power to water valve Determine discontinuity by tracing power. Water Problems Action No water to refrigerator Turn on supply. Look for obstructions in supply line or valve. No water to icemaker Look for obstructions in water valve or fill tube. Insufficient water to icemaker (with correct fill Check for restrictions in supply line and valve, especially saddle time) valves. Clogged water valve Clean or replace water valve depending on type of valve. Low water pressure at supply Increase water pressure to 20-120 psi Low water pressure at water valve Look for restrictions in line. Excessive water pressure Install pressure regulator and set to 60 psi. / Adjust water fill screw, clear obstructions in supply line or supply 1 I Low water fill volume valve, or replace water valve. Excessive water fill volume Adjust water fill screw, reduce water pressure, or replacewater valve. Water overflows fill cup Water overflows mold Reposition fill tube in fill cup or remove obstruction in fill cup. Adjust water fill screw, level icemaker or refrigerator, reduce wa ter pressure, or replace water valve or icemaker. Leaky water valve Tighten connections or replace water valve Temperature Problems Freezer too warm Action Adjust freezersetting or repair refrigerator Icemaker Problems Action Raised shut-off arm Lower shut-off arm to ON position Broken or bent shut-off arm Repair arm or replace icemaker Shut-off arm stuck or obstructed Remove obstruction Icemaker not level Can't level icemaker Check level of refrigerator first, then level icemaker Level refrigerator first then try again Open thermostat (won't close below 17" F) Replace Icemaker Closed thermostat (won't open above 32" F) Replace Icemaker Thermostat out of calibration Replace Icemaker Heater not staying in mold Replace Icemaker Won't cycle test with power available Replace Icemaker Won't eject ice with power available Replace Icemaker 18