7/21/2019 Whirlpool-Maytag FL Washer WFW94HEXWO =L85 ManualTech Sheet W10254474

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PAGE 1

FOR SERVICE TECHNICIANS USE ONLY

DO NOT REMOVE OR DESTROY

IMPORTANT SAFETY NOTICE For Technicians onlyThis service data sheet is intended for use by persons having electrical, electronic, andmechanical experience and knowledge at a level generally considered acceptable in theappliance repair trade. Any attempt to repair a major appliance may result in personal injuryand property damage. The manufacturer or seller cannot be responsible, nor assume anyliability for injury or damage of any kind arising from the use of this data sheet.

Whirlpool Control Panel ........................................ 2Maytag Control Panel ........................................... 3Diagnostic Guide .................................................. 4Activating Service Diagnostic Mode ...................... 4Service Diagnostic Menu ...................................... 4User Interface Test ............................................... 5Software Version DIsplay ..................................... 5

ContentsQuick Diagnostics ................................................ 6Fault/Error Codes ........................................... 710Troubleshooting Guide .................................. 11, 12Test Procedures ........................................... 1321Manually Unlocking the Door Lock System ......... 22Component Removal .......................................... 22Wiring Diagrams .......................................... 23, 24

PART NO. W10254474B

IMPORTANT: Electrostatic Discharge (ESD) Sensitive Electronics

ESD problems are present everywhere. Most people begin to feel an ESD discharge atapproximately 3000V. It takes as little as 10V to destroy, damage, or weaken the main controlassembly. The new main control assembly may appear to work well after repair is finished,but a malfunction may occur at a later date due to ESD stress.n Use an anti-static wrist strap. Connect wrist strap to green ground connection point or

unpainted metal in the appliance

-OR-

Touch your finger repeatedly to a green ground connection point or unpainted metalin the appliance.

n Before removing the part from its package, touch the anti-static bag to a green groundconnection point or unpainted metal in the appliance.

n

Avoid touching electronic parts or terminal contacts; handle electronic control assemblyby edges only.

n When repackaging main control assembly in anti-static bag, observe above instructions.

Voltage Measurement Safety InformationWhen performing live voltage measurements, you must do the following:n Verify the controls are in the off position so that the appliance does not start when energized.

n Allow enough space to perform the voltage measurements without obstructions.

n Keep other people a safe distance away from the appliance to prevent potential injury.

n Always use the proper testing equipment.

n After voltage measurements, always disconnect power before servicing.

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PAGE 2

FOR SERVICE TECHNICIANS USE ONLY

DO NOT REMOVE OR DESTROY

WHIRLPOOLCON

TROLPANEL(featuresa

ndappearancesmayva

rybetweenmodels)

Figure1-

UserInterfac

eTest

FanFreshbutton:p

ress

oncetoturnoffindic

ator.

Notavailableonallmodels.

DeepCleanbutton

:press

oncetoturnoffindicator.

Notavailableonallm

odels.

Optionbuttons:presseach

buttononcetoturnoff

itsrespectiveind

icator.

Presseachmodifierbutton

oncetoturnoffits

respective

displaysegm

ent.

DelayStart(p

)

button:pressoncetoturnoff

seven-segmentdisplay.

Ro

tatingthecycleselectorknobturnsoffeachcorrespondingcycle

indicator.(Featuresandappearancesvarybetweenmodels).

POWERbutton:press

oncetoturn

offindicator.Presstwicetoexitmost

servicediagnosticmodesandreturn

tostandbymo

de.

START/PAUSEbutton:begin

orcontinuetest.Pressonce

toturnoffindicator.

DelayStart(q)button:pressonce

to

turnofftopsegmentofdisplay.

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PAGE 3

FOR SERVICE TECHNICIANS USE ONLY

DO NOT REMOVE OR DESTROY

The

cycleselectorLEDwillturnoffa

fterslowlyrotating

th

eknobthroughallofitsposition

s.

(Featuresand

appearancesvarybetween

models).

power/cancelbu

tton:pressonceto

turnoffindicator.

Presstwicetoexit

mostservicediag

nosticmodesand

returntosta

ndbymode.

start/pausebutton:begin

orcontinuetest.Pressonce

toturnoffindicator.

delaystart(+)button

:

pressoncetoturnoff

seven-segmentdisplay

.

freshholdbutto

n:press

oncetoturnoffindicator.

Notavailableonallmodels.

steamforstainsbutton:

pressoncetoturnoffindicator.

Notavailab

leonallmodels.

Figure2-

UserInterfac

eTest

Optionbuttons:press

each

buttononcetoturno

ffits

respectiveindicator.

dela

ystart()button:

press

oncetoturnoffthe

upperrightcornerofdisplay.

Presseachmodifierbuttononceto

turn

offitsrespectivedisplaysegme

nt.

(Recommendedbuttonstoaccess

DiagnosticMode).

MAYTAGCONTRO

LPANEL(featuresandappearancesmayvaryb

etweenmodels)

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PAGE 4

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ABBREVIATIONSCCU:Central Control UnitIF:Interference FilterMCU:Motor Control Unit

UI:User Interface (center/modifier PCBs& housing)

DIAGNOSTIC GUIDEBefore servicing, check the following:n Make sure there is power at the wall outlet.n Has a household fuse blown or circuit breaker

tripped? Was a regular fuse used? Informcustomer that a time-delay fuse is required.

n Are both hot and cold water faucets openand water supply hoses unobstructed?

n All tests/checks should be made with aVOM (volt-ohm-milliammeter) or DVM(digital-voltmeter) having a sensitivity of20,000per volt DC or greater.

n Resistance checks must be made withwasher unplugged or power disconnected.

n IMPORTANT: Avoid using large

diameter probes when checking harnessconnectors as the probes may damage

the connectors upon insertion.n Check all harnesses and connections

before replacing components. Look forconnectors not fully seated, broken orloose wires and terminals, pin insertion,or wires not pressed into connectorsfar enough to engage metal barbs.

n A potential cause of a control notfunctioning is corrosion or contamination onconnections. Use an ohmmeter to check forcontinuity across suspected connections.

SERVICE DIAGNOSTIC MODEThese tests allow service personnel to testand verify all inputs to the machine controlelectronics. You may want to do a quick and

overall checkup of the washer with these testsbefore going to specific troubleshooting tests.

ACTIVATING SERVICE DIAGNOSTIC MODE

1. Be sure the washer is in standby mode(plugged in with all indicators off).2. Select any three (3) buttons (exceptPOWER) and follow the steps below, using

the same buttons. Remember the buttons

and the order that the buttons were pressed.Within 8 seconds, Press and Release the 1stselected button, Press and Release the 2ndselected button, Press and Release the 3rdselected button; Repeat this 3 button sequence 2 more times.3. If the Service Diagnostic mode hasbeen entered successfully, all indicators on

the console are illuminated for 5 seconds

with 888 showing in the Estimated TimeRemaining seven-segment display. If thereare no saved fault codes, all indicators on theconsole will momentarily turn off, and thenonly the seven-segment display will comeback on and display 888.NOTE:The Service Diagnostic mode will timeout after 5 minutes of user inactivity, or shutdown if AC power is removed.

Button Press Function Behavior

1st Button - Momentary press

- Press and hold for 5 secs.

- Activates User Interface Test

- Exits Service Diagnostic Mode2nd Button - Momentary press

- Press and hold for 5 secs.- Activates Quick Diagnostic Test- Software Version Display

3rd Button - Momentary press- Press and hold for 5 secs.

- Displays Next Error Code- Clears the Error Codes

SERVICE DIAGNOSTIC MENU

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PAGE 5

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Unsuccessful ActivationIf entry into Service Diagnostic mode isunsuccessful, refer to the following indicationsand actions:

Indication 1: None of the indicators or displayturn on.Action: Select any cycle.

If indicators come on, check the functionalityfor the three buttons used to activate theService Diagnostic mode. Verify that thebutton responds and a beep sound is heardwhen pressed. If the button is faulty, it willnot be possible to enter the diagnostic mode

using that button. Replace the user interfaceand housing assembly. Refer to ComponentRemoval on page 22.

If no indicators come on after selecting thecycle, go to TEST #1, CCU Power Check,page 13.

Indication 2: All console indicators beginflashing immediately.Action: If all console indicators begin flashingon and off immediately, replace the userinterface.Act