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Repair Support and Videos - Trouble Shooting Tips...Remedy 1. Replace fuse or reset breaker. 2....

Date post: 28-Jul-2020
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Remedy 1. Replace fuse or reset breaker. 2. Repair or replace wire fasteners at dishwasherjunctionbox. 3.Replacetimer. 4. Replacemotor/impellerassembly. 5. Replacedoorswitch. 6. Replacelatchassembly. 7. Replaceselectorswitch. 1. Replacemotor. 2. Rotatemotorfanorimpeller. 1. Checkvoltage. 2. Rotate motor fan or impeller, or replace. 3. Clearblockageorreplace. 4. Replacemotor/impellerassembly. 5. Cleanandclearblockage. 1. Replaceheaterelement. 2. Replacetimer. 3. Repairorreplace. 4. Replacethermostat. 1. Replacedispenser. 2. Replacetimer. 3. Repairorreplace. 4. Replacedispenser. 5. Replaceactuator. 1. Clearrestrictions. 2. Replacetimer. 3. Replacepump. 4. Makesurehoseisattachedinproper positiononsideoftub. 5. Checkforblockage,clear. 6. Replacewindings. 1. Turnwatersupplyon. 2. Replacewaterinletfillvalve. 3. Disassembleandcleanscreen. 4. Repairorreplace. 5. Replacetimer. 6. Repairorreplace. 7. Cleanfloat. 1. Replacetimer. 2. Repairorreplacetimer. 3. Repairoradjust. 4. Replace or adjust position of thermostat. 1. Repairtoproperheight. 2. Installairgapatcountertop. 3. Reattachdrainhose. 1. Instructcustomer/user. 2. Instructcustomer/user. 3. Instruct customer/user on proper loadingofdishes. 4. Incomingwatertemperatureof120°F is required to properly dissolve dishwashingdetergents. TroubleShootingTips ExplodedViewofWashSystem TubandDoorSeal Thedoorsealispressedintothetubchannelfor aninterferencefit.Centerthegasket(markedon back) at the tub top center and press in place ProductSpecifications Electrical Rating ....................... 120Volts,60Hz SeparateCircuit..15ampmin.-20ampmax. Motor(HP) ...................................... 1 / 12 Motor (Amps) .................................. 3.4 HeaterWattage ............................... 900 TotalAmps(loadrated) .................... 11.0 TempAssure ......................... 123°F–5°F (53°C–3°C) [withouterdoorinplace] TempBoost ........................ 133°F (56°C) HeatedWash/HeatedRinse WaterSupply Suggestedminimumincomingwater temperature ...................... 120°F (49°C) Pressure(PSI)min./max . ............... 20/120 Connection(NPT) ............................ 3 / 8" Consumption(NormalCycle) ................. ....... 6.0U.S.gal.,5.0Imp.gal.,22.7liters Watervalveflowrate(U.S.GPM) ........ . 83 Waterrecirculationrate(U.S.GPM) .......... ........................................ approx.12 Waterfilltime ............................ 87sec. DetergentandRinseAidDispenser Thedetergentandrinseaiddispenserisaone piece component consisting of a molded detergentcupandabuilt-inrinseaiddispenser. Thedetergentcuphasaspringloadedcoverand therinseaiddispenserhasaremovablecover. Liquidrinseaidisaddedtothedispenserupto the fill line indicator. The amount of rinse aid releasedcanbeadjustedbyturningthearrow indicatorfromone,beingtheleastamount,to four,beingthegreatestamount. Toreplacedispenser: shutoffelectricitytodishwasher, removeouterdoorpanelassembly, disconnectwiringtotheactuator, removethesixscrews, removethedispenser, replaceandreinstallscrews, rewireactuator. Toreplaceactuator: shutoffelectricitytodishwasher, disconnectwiringtotheactuator, placeaflatheadscrewdriverunderthe actuatorbodyandbetweenthedispenser housingandterminalside,twistandliftup ontheactuatorbeingcarefulnottodamage theretainersnap-fits, replacewithnewactuatorbypressinginto place, rewireactuator. StandardDryAirFlow Whenthecontroladvancestothedryportionof thecycle,alinearactuatorretractsavalve,which opensaventpaththroughtheconsoleintothe kitchen.This venting method eliminates discharging heated moisture into the motor compartment.Theheated,moistairleavingthe dishwasherthroughtheconsoleventcauses drierairtobedrawnintotheunitbywayofintake vents located at the bottom of the door. The wateronthedishesisevaporatedintodrierair andtheventingprocesscontinues.Theheating elementisturned ONand OFFduringtheentire dryingcycle. PowerDryAirFlow ThePowerDryconfigurationisthesameasthe Standardexceptithasacrossflowblowerlocated intheairdischargepath.Theblowerassiststhe heatingelementinproducingpowertodrivethe moistairoutofthedishwasher. ChecktheFollowing 1. Fuse(blownortripped). 2. 120VACsupplywiringconnection faulty. 3.Timer(contactsopenordefective) 4. Motor(inoperative,check resistances). 5. Doorswitch(opencontacts). 6. Doorlatchnotmakingcontactwith door switch. 7. Selectorswitch(opencontacts). 1. Motor(badbearingsorlocked rotor). 2. Motorstuckduetoprolonged non-use. 1. Impropervoltage. 2. Sealfacesbinding. 3. Motorshaftbinding. 4. Motorwindingsshorted. 5. Glassorforeignitemsinpump. 1. Heaterelement(open). 2. Timerdefective. 3. Wiringorterminaldefective. 4. Hi-limitthermostatdefective. 1. Latchmechanismdefective. 2. Timercontactdefective. 3. Wiringorterminaldefective. 4. Brokenspring(s). 5. Defectiveactuator. 1. Drainrestricted. 2. Timercontactdefective. 3. Defectivedrainpump. 4. Airlockindrainhose. 5. Blockedimpeller. 6. Open windings. 1. Watersupplyturnedoff. 2. Defectivewaterinletfillvalve. 3. Check fill valve screen for obstructions. 4. Defectivefloatswitch. 5. Timercontactdefective. 6. Wiringdefective. 7. FloatstuckinUPposition. 1. Timermotor(stalledoropen.) 2. Checktimerforpowertotimer motor. 3. Timershaftbindingtoorknob interferencewithescutcheon. 4. TempBoostthermostatdefective. 1. Drainhose(high)looptoolow. 2. Drainlineconnectedtoafloor drainnotvented. 3. Drainhosenotconnectedtoside oftub. 1. Detergentallowedtostandtoo longindispenser. 2. Dispenserwetwhendetergentwas added. 3. Detergentcoverheldclosedor blockedbylargedishes. 4. Improperincomingwater temperaturetoproperlydissolve detergent. 5. See"Detergentcoverwillnot open." Alwaysdisconnectthedishwasherfromtheelectricalpowersourcebeforeadjustingor replacingcomponents. PersonalInjuryHazard Nozzle Funnel Nut FunnelBase CenterSprayArm LowerSprayArm DeliveryTube ConnectorHose Sump ImpellerScrew WaterValve WaterInletTube Impeller Seal CheckBall CirculationMotor MotorBracket 900WattHeater Refer to the cycle chart on the reverse side to determinewhentheheaterisonduringthewash cycle. The heater cycles ONand OFF for brief periodsduringthedryingcycle. Voltage checks of the heater should be made withthetimersetinthemainwash. airlock.Thedrainlooponthesideofthetubmust bekeptinplaceafterservicing. The main pump can easily be removed by disconnectingtheuppersprayarmsupplytube, thedrainpumpconnectorhose,andthewiring harness connections made at the circulation motorandthewaterheatthermostatslocatedon thebottomofthepump. Oncethepumpassemblyisremovedfromthe dishwasher,themotor/impellerassemblycanbe removedfromthesumpbytakingoutthethree (3)T-20Torxheadscrewsfromthealuminum motorbracketandthenthethree(3)T-20Torx headscrewsfromthevolutecover.Usingalarge flat head screwdriver inserted between the impellerscrewandthesumpsvolute,themotor/ impellerassemblycanbegentlypriedoutofthe sump.Usethescrewdriverasalever. PumpAssembly The pump assembly is driven by a 1 /12 HP, shaded pole motor. Rotation is in the counterclockwisedirectionat3100to3200RPM. Themotordrivesapumpwhichsupplies100 percentfilteredwaterataratetoapproximately 12GPMtoonesprayarmatatime.Thespray armsoperationisalternatedbysmallpauses ofthemotorduringthewashcycle. Draining is accomplished by using a small separatesynchronousdrainpumpmountedto thesideofthesump.Thedrainpumpisconnected tothemainpumpbyasmallrubberhose.The draincheckvalveislocatedattheentrancetothe drain pump. The drain hose is attached by a wormgearclamptothedischargeofthedrain pump.Thedrainisthenroutedupthesideofthe dishwasherandattachedtothesideofthetub. Thisdrainloopinsuresthatanairpocketcannot formnearthedrainpumpandcausethepumpto Symptom Dishwasherwillnotoperatewhen turnedon(waitatleast90 seconds). Motorhumsbutwillnotstartor run. Motortripsoutoninternalthermal overloadprotector. Dishwasherrunsbutwillnotheat. Detergent cover will not latch or open. Dishwasherwillnotpumpout. Dishwasherwillnotfillwithwater. Timerdoesnotadvance. Dishwasherwatersiphonsout. Detergent left in dispenser. withoutstretchingorbunching.Thegaskettakes a short turn at the bottom of the tub channel beforeendingatthechannelendwall. Tub Interior Mounting Rib GasketCrossSection ShortTurn IncomingWaterSupply DrainHose SprayArm Support GlassTrap Heating Element Filter SoilDirector VoluteCover DrainMotor 961120 Macerator BarrelFront BarrelRear
Transcript
Page 1: Repair Support and Videos - Trouble Shooting Tips...Remedy 1. Replace fuse or reset breaker. 2. Repair or replace wire fasteners at dishwasher junction box. 3. Replace timer. 4. Replace

Remedy

1. Replace fuse or reset breaker.2. Repair or replace wire fasteners at

dishwasher junction box.3. Replace timer.4. Replace motor/impeller assembly.

5. Replace door switch.6. Replace latch assembly.

7. Replace selector switch.

1. Replace motor.2. Rotate motor fan or impeller.

1. Check voltage.2. Rotate motor fan or impeller, or

replace.3. Clear blockage or replace.4. Replace motor/impeller assembly.5. Clean and clear blockage.

1. Replace heater element.2. Replace timer.3. Repair or replace.4. Replace thermostat.

1. Replace dispenser.2. Replace timer.3. Repair or replace.4. Replace dispenser.5. Replace actuator.

1. Clear restrictions.2. Replace timer.3. Replace pump.4. Make sure hose is attached in proper

position on side of tub.5. Check for blockage, clear.6. Replace windings.

1. Turn water supply on.2. Replace water inlet fill valve.3. Disassemble and clean screen.

4. Repair or replace.5. Replace timer.6. Repair or replace.7. Clean float.

1. Replace timer.2. Repair or replace timer.3. Repair or adjust.

4. Replace or adjust position ofthermostat.

1. Repair to proper height.2. Install air gap at counter top.

3. Reattach drain hose.

1. Instruct customer/user.

2. Instruct customer/user.

3. Instruct customer/user on properloading of dishes.

4. Incoming water temperature of 120°Fis required to properly dissolvedishwashing detergents.

Trouble Shooting TipsExploded View of Wash System

Tub and Door Seal

The door seal is pressed into the tub channel foran interference fit. Center the gasket (marked onback) at the tub top center and press in place

Product SpecificationsElectrical

Rating .......................120 Volts, 60HzSeparate Circuit..15 amp min.- 20 amp max.Motor (HP) ...................................... 1/12

Motor (Amps) .................................. 3.4Heater Wattage............................... 900Total Amps (load rated) .................... 11.0TempAssure ......................... 123°F±5°F(53°C±3°C) [with outer door in place]TempBoost ........................ 133°F (56°C)

Heated Wash/Heated Rinse

Water SupplySuggested minimum incoming watertemperature ...................... 120°F (49°C)Pressure (PSI) min./max. ...............20/120Connection (NPT) ............................ 3/8"Consumption (Normal Cycle) ........................ 6.0 U.S. gal., 5.0 Imp. gal., 22.7 liters

Water valve flow rate (U.S. GPM) ........ .83Water recirculation rate (U.S. GPM) .................................................. approx. 12

Water fill time............................ 87 sec.

Detergent and Rinse Aid Dispenser

The detergent and rinse aid dispenser is a onepiece component consisting of a moldeddetergent cup and a built-in rinse aid dispenser.

The detergent cup has a spring loaded cover andthe rinse aid dispenser has a removable cover.

Liquid rinse aid is added to the dispenser up tothe fill line indicator. The amount of rinse aidreleased can be adjusted by turning the arrowindicator from one, being the least amount, tofour, being the greatest amount.

To replace dispenser:

� shut off electricity to dishwasher,� remove outer door panel assembly,� disconnect wiring to the actuator,

� remove the six screws,� remove the dispenser,� replace and reinstall screws,� rewire actuator.

To replace actuator:

� shut off electricity to dishwasher,� disconnect wiring to the actuator,� place a flat head screwdriver under the

actuator body and between the dispenserhousing and terminal side, twist and lift upon the actuator being careful not to damagethe retainer snap-fits,

� replace with new actuator by pressing intoplace,

� rewire actuator.

Standard Dry Air Flow

When the control advances to the �dry� portion ofthe cycle, a linear actuator retracts a valve, whichopens a vent path through the console into thekitchen.This venting method eliminatesdischarging heated moisture into the motorcompartment. The heated, moist air leaving thedishwasher through the console vent causesdrier air to be drawn into the unit by way of intakevents located at the bottom of the door. Thewater on the dishes is evaporated into drier airand the venting process continues. The heatingelement is turned ON and OFF during the entiredrying cycle.

Power Dry Air Flow

The Power Dry configuration is the same as theStandard except it has a cross flow blower locatedin the air discharge path. The blower assists theheating element in producing power to drive themoist air out of the dishwasher.

Check the Following

1. Fuse (blown or tripped).2. 120 VAC supply wiring connection

faulty.3. Timer (contacts open or defective)4. Motor (inoperative, check

resistances).5. Door switch (open contacts).6. Door latch not making contact with

door switch.7. Selector switch (open contacts).

1. Motor (bad bearings or lockedrotor).

2. Motor stuck due to prolongednon-use.

1. Improper voltage.2. Seal faces binding.

3. Motor shaft binding.4. Motor windings shorted.5. Glass or foreign items in pump.

1. Heater element (open).2. Timer defective.3. Wiring or terminal defective.4. Hi-limit thermostat defective.

1. Latch mechanism defective.2. Timer contact defective.3. Wiring or terminal defective.4. Broken spring(s).5. Defective actuator.

1. Drain restricted.2. Timer contact defective.3. Defective drain pump.4. Air lock in drain hose.

5. Blocked impeller.6. Open windings.

1. Water supply turned off.2. Defective water inlet fill valve.3. Check fill valve screen for

obstructions.4. Defective float switch.5. Timer contact defective.6. Wiring defective.7. Float stuck in �UP� position.

1. Timer motor (stalled or open.)2. Check timer for power to timer

motor.3. Timer shaft binding to or knob

interference with escutcheon.4. TempBoost thermostat defective.

1. Drain hose (high) loop too low.2. Drain line connected to a floor

drain not vented.3. Drain hose not connected to side

of tub.

1. Detergent allowed to stand toolong in dispenser.

2. Dispenser wet when detergent wasadded.

3. Detergent cover held closed orblocked by large dishes.

4. Improper incoming watertemperature to properly dissolvedetergent.

5. See "Detergent cover will notopen."

Always disconnect the dishwasher from the electrical power source before adjusting orreplacing components.

Personal Injury Hazard

Nozzle

Funnel

Nut

Funnel Base

Center Spray ArmLower Spray Arm

Delivery Tube

Connector Hose

SumpImpeller ScrewWater Valve

Water Inlet Tube

Impeller

SealCheck Ball

Circulation Motor

Motor Bracket

900 Watt Heater

Refer to the cycle chart on the reverse side todetermine when the heater is on during the washcycle. The heater cycles ON and OFF for briefperiods during the drying cycle.

Voltage checks of the heater should be madewith the timer set in the main wash.

air lock. The drain loop on the side of the tub mustbe kept in place after servicing.

The main pump can easily be removed bydisconnecting the upper spray arm supply tube,the drain pump connector hose, and the wiringharness connections made at the circulationmotor and the water heat thermostats located onthe bottom of the pump.

Once the pump assembly is removed from thedishwasher, the motor/impeller assembly can beremoved from the sump by taking out the three(3) T-20 Torx head screws from the aluminummotor bracket and then the three (3) T-20 Torxhead screws from the volute cover. Using a largeflat head screwdriver inserted between theimpeller screw and the sump�s volute, the motor/impeller assembly can be gently pried out of thesump. Use the screwdriver as a lever.

Pump Assembly

The pump assembly is driven by a 1/12 HP,shaded pole motor. Rotation is in thecounterclockwise direction at 3100 to 3200 RPM.The motor drives a pump which supplies 100percent filtered water at a rate to approximately12 GPM to one spray arm at a time. The sprayarm�s operation is alternated by small �pauses�of the motor during the wash cycle.

Draining is accomplished by using a smallseparate synchronous drain pump mounted tothe side of the sump. The drain pump is connectedto the main pump by a small rubber hose. Thedrain check valve is located at the entrance to thedrain pump. The drain hose is attached by aworm gear clamp to the discharge of the drainpump. The drain is then routed up the side of thedishwasher and attached to the side of the tub.This drain loop insures that an air pocket cannotform near the drain pump and cause the pump to

Symptom

Dishwasher will not operate whenturned on (wait at least 90seconds).

Motor hums but will not start orrun.

Motor trips out on internal thermaloverload protector.

Dishwasher runs but will not heat.

Detergent cover will not latch oropen.

Dishwasher will not pump out.

Dishwasher will not fill with water.

Timer does not advance.

Dishwasher water siphons out.

Detergent left in dispenser.

without stretching or bunching. The gasket takesa short turn at the bottom of the tub channelbefore ending at the channel end wall.

TubInterior

MountingRib

Gasket Cross Section

Short Turn

Incoming Water Supply

Drain Hose

Spray ArmSupport

Glass Trap

HeatingElement

Filter

Soil Director

Volute Cover

Drain Motor

961120

Macerator

Barrel Front

Barrel Rear

Page 2: Repair Support and Videos - Trouble Shooting Tips...Remedy 1. Replace fuse or reset breaker. 2. Repair or replace wire fasteners at dishwasher junction box. 3. Replace timer. 4. Replace

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