Tech Sheet - W10751166 - Rev C - Whirlpool

1 1 FOR SERVICE TECHNICIAN S USE ONLY NOTE: This Sheet contains important Technical Service Data. W10751166C Tech Sheet Do Not Remove Or DestroyControl AssemblyMeter Check of Loads and FusesFuse Service Check:F8 = Motor = Small-triac Load operation of loads during the Service Diagnostics cycle. If any of the triac loads work, F9 Fuse is OK. If all triac loads fail to work, F9 Fuse could be open. See Fuse Resistance Check. If Wash Motor does not work, F8 Fuse could be open. See Fuse Resistance Check. Fuse Resistance the dishwasher or disconnect resistance of F8 Fuse and/or F9 Fuse. NOTE: Fuses are on the bottom of the Control Board but can be checked from the top side. See Control Pinout diagram. If resistance is <3 ?

2 Then fuse is OK. If resistance is >3 ?) then fuse is open. What To Do If Fuse Open:Inspect and check resistance of all loads on fuse. If any loads are open, shorted, or have evidence of overheating or pinched wires, replace Shock HazardOnly authorized technicians should perform diagnostic voltage performing voltage measurements, disconnect power before to follow these instructions can result in death or electrical Shock HazardDisconnect power before all parts and panels before to do so can result in death or electrical Supply:(Under load) 60 Hz, 120 VACL ower Spray Arm Rotation:12 to 40 rpmSupply Water Flow Rate:To fill 2 qt ( L) in 27 seconds, 120 psi maximum, 20 psi Spray Arm Rotation:12 to 30 rpmSupply Water Temperature:120 F (49 C) (Before starting a cycle, run water from sink faucet until hot.

3 REPAIR KITSW ater gal. ( L) ApproximateVinyl Touch-up Kits:675576 (Blue), 676453 (White), 676455 (Gray)Voltage Measurement Safety InformationWhen performing live voltage measurements, you must do the following: Verify the controls are in the off position so that the appliance does not start when energized. Allow enough space to perform the voltage measurements without obstructions. Keep other people a safe distance away from the appliance to prevent potential injury. Always use the proper testing equipment. After voltage measurements, always disconnect power before servicing. Pin 1 Rast Connector PinoutPin 1 ControlAssemblyPinch toreleaseRotateConnector BoxConnector Brace(To remove, pincharms and rotate)Control panel snaplocks control in placeButtons on bottomof control housing slide into keyhole slots on control panel to supportthe control2 Wiring DiagramSchematic shown with door switch and all other normally-open contacts open.

4 *Denotes energy-efficient components. Do not used test points onPC board for (1 Loop)BKWHH eaterElementThermostat(Hi-Limit) PinK1 HTR-NRelayK3 HTR-LRelayP4P4-4P4-3P4-2P4-1 BKWHK4 SenseMotorRelayOptionalP5F9 FuseP5-2P5-1 LBLBL1N3211 - PH SyncWashMotorPumpDrainMotor133333111 Overfill(Float)SwitchFill Valve*SoftenerRegen Valve(Not AllModels)DiverterMotor13131313131312131 2343131312456(Spare)(Spare)FutureFutureV ent WaxMotorFan MotorOptionalFlowMeter39 KSoftenerSalt Sensor(Closed WhenEmpty)(Not All Models)DiverterPositionSwitch Contact(Closed DuringTransitions)(Spare) *(NTC, Foam, & Turbidity Sensor)BRBRBRBRBRBRBUBUBUBURDRDRDRDVVVVB RBRBRBR13 VVCCREF(+8V)(N)(-5V)7P6PP8P9P10P11P12P13 3 Door Open DetectionP2123413 VPilot L1Te s tPad ForAllTr i a cLoadsFan Load(Current)SenseAnalogInputDigitalInpu tAnalogInputNTCI nputOptSigFoamDriveTu r b oDrive13 VVCCWideData13 VBeeperREFVCCWide Data P1AP1 BLEDD isplays14-pinMechanicalPush-ButtonBoards 20-pinActiveOverlays19-pinZIF1324567 Black Stripe On ConnectorRed Stripe On ConnectorP6-1P6-3P6-4P6-6P6-7P6-9P7-1P7- 3P7-4P7-6P8-1P8-3P8-4P8-6P9-1P9-3P9-5P9- 6P10-1P10-3P10-5P10-4 Micro PinMicro PinMicro PinK2F8 FuseOr51 DispenserWax MotorP13-1P13-2P13-3P13-4 LCD UI4-pinPilotRelayW2P11-3 RDP11-3 RDP11-2 RDP11-4 RDP11-5 RDP11-6 RDP12-1 YLP12-2 YLP12-3 YLP12-4 YLP12-5 YLP12-6 YLDispenserSolenoidDoor SwitchOn some modelsTemporaryConnection Portfor DevelopmentTools (& future service tools)

5 P1A and P1 BUser InterfaceConnector OptionsCapacitive TouchKeyboards 4-pinP1-VCCP4-REFE lectronic Control* CCU1PC Board x mm2-sided FR4 Power SupplyLevel 1-3 WLevel Sense circuit is different forHigh vs Low Power motorsReturn Line 13 Volt relay coils go through Door Switch AC InputOverfull/Leak Detection(and Pilot Relay detection)Load (current) Sense for drain, vent and all other triac loads on PilotIn Factory programming port(on top surface of PCB)(Depopulate in production; use pads)CR- 1BU/WHBU/RD1234P1CL112312312312 3 4 LightLightLightTo Connector P13 Light In tub (on some models)GYGY31 Fan Motoror3 Service Diagnostics CycleService Diagnostics Cycle Notes:Customer Cycle OperationTo quickly advance through customer cycles, invoke the Rapid Advance mode by pressing HIGH TEMP - HEATED DRY - HIGH TEMP - HEATED DRY, after starting the cycle.

6 Then, press START/RESUME to advance through cycle intervals. NOTE: Rapid Advance mode is automatically enabled in the Service Diagnostic cycle but must be manually invoked in customer 24 2322 2118171615141312111098765 4 321 INTERVALCYCLE, OPTION, AND STATUS LEDsNORMALHI TEMPDRY OPTION1 HR WASHSTART/RESUMERUNNING (Front Status light)SANITIZEDCLEAN/ 7-SegALL OTHER CYCLE, OPTION, AND STATUS LEDsNRMNRMNRMNRMNRMNRMNRMNRMNRMNRMNRMNRM HITHITHITHITHITHITHITHITHITHITHITHITDRYD RYDRYDRYDRYDRYDRYDRYDRYDRYDRY1HR1HR1HR1H R1HR1HR1HR1HR1HR1HR1HR1 HRSTASTA STA STASTASTASTASTASTASTASTASTASTASTASTASTA STASTASTA STASTASTASTARUNRUNRUN RUNRUN RUNRUNRUNRUNRUNRUNRUNRUNRUNRUNRUNRUN RUNRUN RUNRUNRUNRUNRUNSAN(SAN)(SAN)CLN7-Seg(CLN )(CLN)(CLN)ALLNOTE54,5,6 NOTESINTERVAL TIME (min:sec)TOTAL TIME (MAX.): 22:57 SOIL SENSING INTERVALS AND SENSOR CHECKSNOTE5 OWI (SOIL SENSOR) CHECK INTERVALSNOTE6 NOTE: OWI has thermistor built in - see check aboveTHERMISTOR (TEMPERATURE SENSOR)CHECK INTERVALNOTE8 SALT LEVEL REED SWITCH/FLOWMETER INPUT TESTLOADSPILOT RELAYVENTFILLWASH MOTORDISPENSER (DETERGENT/RINSE AID)DRAIN MOTORDC FAN MOTOR (IF PRESENT)HEATERREGEN (IF PRESENT)0:060:080:080:080:080:100:050:23 0:051:002:000:301:000:304:000:010:010:01 0:011:520:062:300:080:08 OWIOWIOWITHRPLTPLTPLTPLTPLTPLTPLTPLTPLTP LT PLT PLTPLTPLTPLTPLTVNTVNTVNTVNTVNTVNTVNTVNTV NT VNTVNTVNTVNTVNTVNTVNTFILFILFILWSHWSHWSHW SHWSHWSHWSHDSPDRNDRNDRNFA NHTRHTRREG2 CUSTOMER ERROR 1 CUSTOMER ERROR 2 CUSTOMER ERROR 3 CUSTOMER ERROR 4 SERVICE ERROR 1 SERVICE ERROR 2 STANDBY1166819 NRMDRYSTARUN(CLN)0.

7 4445 HITHITPLTVNTDRNSTANDBY11116661 HRSTASRMNOTE7 DIVERTER POSITION SENSOR CHECKNOTE3 DIVERTERDIVERTER POSITIONDIV(DIV)(DIV)(DIV) (DIV)DIVUPRUPRUPRUPRUPRUPRUPRONLOWLOWLOW LOW LOW LOWLOWTZFA NFA NFA N333337201 HRSTARUN(CLN)90:01 HIT7-Seg7-Seg 7-Seg7-Seg7-SegAC FAN MOTOR (IF PRESENT)1To invoke the Diagnostics Cycle, perform the following while in standby: Press any 3 keys in the sequence 1-2-3-1-2-3-1-2-3 with no more than 1 second between key presses. The Service Diagnostics Cycle will start when the door is closed. To rapid advance 1 interval at a time, press the Start/Resume key. Rapid advance may skip sensor checks as some checks require 2 complete : While you are in the Diagnostic Cycle, the Start/Resume feature is turned Off (for example, Auto Resume after door interrupts) and the Start/Resume key becomes an interval advance key.

8 Invoking Service Diagnostics Cycle clears all status and last run information from memory and restores defaults. It also forces the next cycle to be a sensor calibration cycle. Drain and wash motors will pulsate on and off. Last run cycles and options returned to default. Last run delay returns to the lowest delay increment. Calibration cycle may force an extra rinse to occur prior to Final Rinse (to assure clear water), then calibrates the OWI and the fill amount during the final rinse. Operating state returns to Standby upon completing or terminating the Service Diagnostics Cycle. Reference the Service Diagnostics with Error Codes section for details. 2 Turn on all LEDs immediately upon receiving the entry sequence (even if the door is open) for 5 seconds as a display test. Turn off all LEDs for 1 second prior to reporting customer error will be on continuously in interval 14.

9 In all other diverter intervals, diverter will be on only until it reaches the intended position for that HI TEMP key in this interval to clear customer error (temperature sensor) checks - turn clean LED on if thermistor is in its normal temperature range 32 F to 167 F (0 C to 75 C) Turn sanitized LED on if fill temperature is above 65 F ( C).6 OWI (optical soil sensor) checks: Check OWI sensor for the presence of water during the 5 sec. pause in interval 16 and turn on the Clean LED in interval 15 if water detected. Check OWI sensor for presence of bulk soil during pause interval 13 and turn on the Clean LED in interval 12 if bulk soil detected. Drain until OWI sensor sees the presence of air or a maximum of 1:52 during interval 5 and turn on the Clean LED in interval 4 if air Fan Motor is on during upper rack washing on Sanitized LED in this interval to indicate that the salt level reed switch is on Clean LED in this interval to indicate that vent current is PinoutMeter Check of Loads and Fuses Dishwasher Strip CircuitsThe following individual circuits are for use in diagnoses.

10 Do not continue with the diagnosis of the appliance if a fuse is blown, a circuit breaker is tripped, or if there is less than a 120-volt power supply at the wall outlet. Unplug dishwasher or disconnect power. Perform resistance checks. To check resistance of a component, disconnect harness leads SwitchWash/RinseWater Heating/Heat Dry and Water Sensing with Sensor (Water/Air/Soil/Temperature)Pump is washing and control monitors temperature during water heating periods. See Wash/Rinse and Water Sensing with Sensor (Water/Air/Soil/Temperature) circuits). Fill(Top)W2P5P6P7P8P9P10P11P12P13-4-3-2- 1-2-1-1-6-9-1-6-1-6-1-5-6-1-3-5-1-2-4-6- 1-3(OWI)P12(Wide Out)P13P4P5P6 BRP7 BUP8 RDP9VP10 BRP11 RDP12YL of F9 Triac Fuse of F8 Motor FuseElectronic ControlElectronic ControlMicro PinMicro PinMicro PinMicro Pin K4 Motor (N) Relay K3 Heater (L1) Relay K2 Pilot (L1) Relay K1 Heater (N) (To Wash Motor)(To Heater) (To Wash Motor,Vent, and Triac Loads)(To Heater) Door SwitchSensing InputRefP9-5P10-4 Door SwitchP9-613 VVVM otor Power Sense Resistoror Jumper 0 L1 BKP4-2P5-2P5-1P4-1 NWH K4 Motor N Relay(Also see Door Switch Circuit) 1-PH SyncWash Motor(Power Supply)Electronic ControlElectronic ControlPin 3 Pin 2 120V, 60 Hz 5-15 , 60W Fuse F8 K2 Pilot L1 Relay(Also see Door Switch Circuit)