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PART NO. W10092760A

PAGE 1

PIÈCE N

o

W10092760A

FOR SERVICE TECHNICIAN ONLY – DO NOT REMOVE OR DESTROY

POUR LE TECHNICIEN SEULEMENT – NE PAS ENLEVER NI DÉTRUIRE

Check all connections before replacing
components. Look for broken or loose wires, failed
terminals, or wires not pressed into connectors far
enough.

A potential cause of a control not functioning is
corrosion or contamination on connections.
Observe connections and check for continuity with
an ohmmeter.

Connectors: Look at top of connector. Check for
broken or loose wires. Check for wires not pressed
into connector far enough to engage metal barbs.

Resistance checks must be made with washer
unplugged or power disconnected.

DIAGNOSTIC TESTS

There are three diagnostic test modes available:
Automatic, Manual and Console. These tests allow the
factory or service personnel to test and verify all
inputs to the machine/motor control. You may want to
allow the automatic test cycle to complete prior to
going into specific troubleshooting tests, to verify all
washer’s subsystems functionality.

ACTIVATION OF AUTOMATIC
DIAGNOSTIC TEST MODE

1.

Be sure the washer is in standby mode (plugged in
with all indicators off; or with only the Clean
indicator on).

2.

Select any one button (except POWER, START and
PAUSE/CANCEL) and follow the steps below, using
the same button:

a.

Press/hold 3 seconds.

b.

Release for 3 seconds.

c.

Press/hold 3 seconds.

d.

Release for 3 seconds.

e.

Press/hold 3 seconds.

If this test mode has been entered successfully,
all indicators on the console are illuminated for
5 seconds with

88

showing in the Estimated

Time Remaining two-digit display.

If indicators do not display as described above,
the press/hold/release procedure above may not
have been performed within the time frame
necessary for successful entry. Repeat step 2 to
ensure this was not the cause. If still
unsuccessful, see Diagnostic: Unsuccessful
Entry, at right.

3.

The program then checks for saved fault codes:

If there are saved fault codes, see Diagnostic:
Saved Fault Codes, page 2.

If there are no saved fault codes, all indicators
on the console will momentarily turn off, then
turn back on with

88

displayed. After

5 seconds, the Automatic test, below, begins.

DIAGNOSTIC: Automatic

Performs a five-minute automatic test with water
functions to check major washer functions (lid can be
open). Press the same button used in step 2 above to
advance through automatic test steps.

NOTE:

Basket must be floating in order to agitate.

Step C1 must be allowed to complete before
advancing to step C5.

Two-Digit

Indicator

Machine
Function

Recommended

Procedure

C0

Slow spin to

23 rpm.

If no spin go to Manual:
Motor, Spin test,
page 2.

Two-Digit

Indicator

Machine
Function

Recommended

Procedure

C1

Warm water fills

through Fresh

and Detergent*

valves, then

Fresh valve until

basket floats

(disengages);

then washer

continues filling

through Fresh
and Detergent

valves to

minimum water

level.

If no water, or fill
temperature is wrong, go
to Manual: Water Valves
test, page 2.
If basket does not float
or disengage, determine
cause of friction.

C2

Cold water fills

through Bleach

valve for

10 seconds.

If no water in bleach cup
go to Manual: Water
Valves test, page 2.

C3

Hot water fills

through Fabric

Softener* valve

for 10 seconds.

If no water in fabric
softener cup go to
Manual: Water Valves
test, page 2.

C4

Warm water fills

through

Detergent* valve

for 10 seconds.

If no water in detergent
cup go to Manual: Water
Valves test, page 2.

C5

Heater turns on

for 5 seconds.

N/A (Applies to heater
models only).

C6

Agitate for

15 seconds.

If no wash action go to
Manual: Motor, Agitate
test; page 2.

C7

Recirculate for

10 seconds.

If water is not being re-
circulated go to Manual:
Pumps test, page 2.

C8

Drain to basket

engaged plus

timed drain for

10 seconds.

If water is not draining
go to Manual: Pumps
test, page 2.
If basket does not
engage determine cause
of friction.

C9

Drain & Slow

spin 23 rpm for

5 seconds, then

coast to 0 rpm.

If drain pump is not on
go to Manual: Pumps
test, page 2.
If basket is not turning
go to Manual: Motor test,
page 2.
If basket does not stop
spinning within
10 seconds, press
PAUSE/CANCEL and
restart test.

(none)

(Test
ends)

End of Cycle

beep.

If no end of cycle beep,
make sure End of Cycle
Signal is on. From
Setting Mode, pressing
buttons should sound
valid key press beep.

* Step will occur but no water will be dispensed in

models that do not have a fabric softener cup and/or
detergent cup.

DIAGNOSTIC: Unsuccessful Entry

If entry into diagnostic mode is unsuccessful (see steps
1 and 2 of Activation of Automatic Diagnostic Test Mode,
at left), refer to the following indications and actions:

Indication 1: None of the indicators or display
turns on.
Action:

Press POWER button to enter setting mode.

If indicators come on, try to change the function
for the button used to activate the diagnostic test
mode. If that button fails to change the function,
something is faulty with the button, and it is not
possible to enter the diagnostic mode.

IMPORTANT

Electrostatic Discharge (ESD) Sensitive

Electronics

ESD problems are present everywhere. ESD may
damage or weaken the electronic control assembly.
The new control assembly may appear to work well
after repair is finished, but failure may occur at a later
date due to ESD stress.

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 metal in the appliance.

Before removing the par t from its package, touch
the anti-static bag to a green ground connection
point or unpainted metal in the appliance.

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

When repackaging failed electronic control
assembly in anti-static bag, observe above
instructions.

WARNING

Electrical Shock Hazard

Disconnect power before
servicing.

Replace all parts and
panels before operating.

Failure to do so can result
in death or electrical shock.

4,693,095
4,697,293
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5,345,793
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6,658,902
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D375,390
D381,140
D423,740
D426,686
D456,572
D459,844
D463,631
D465,308
D474,566
D502,577
D511,955

SOFTWARE COPYRIGHTED. MANUFACTURED UNDER ONE OR MORE OF

THE FOLLOWING U.S. PATENTS:

DIAGNOSTIC GUIDE

Before servicing, check the following:

Make sure there is power at the wall outlet.

Has a household fuse blown or circuit breaker tripped?
Was a regular fuse used? Use a time-delay fuse.

Are both hot and cold water faucets open and water
supply hoses unobstructed?

All tests/checks should be made with a VOM (volt-ohm-
milliammeter) or DVM (digital-voltmeter) having a
sensitivity of 20,000

per volt DC or greater.

NOTE:

Avoid using large diameter probes when

checking harness connectors as the probes may
damage the connectors upon insertion.

Summary of Contents for MTW6700TQ0

Page 1: ...n Slow spin 23 rpm for 5 seconds then coast to 0 rpm If drain pump is not on go to Manual Pumps test page 2 If basket is not turning go to Manual Motor test page 2 If basket does not stop spinning within 10 seconds press PAUSE CANCEL and restart test none Test ends End of Cycle beep If no end of cycle beep make sure End of Cycle Signal is on From Setting Mode pressing buttons should sound valid ke...

Page 2: ...Turns on drain pump cycle indicator flashes Repeat Turns off drain pump cycle indicator is steady on If pumps fail to turn on go to TEST 7 page 5 Manual Lid Switch See Manual Activation at left Opening the lid should cause the Clean status indicator to turn off Closing the lid should cause the indicator to turn on If Clean indicator does not turn off or on go to TEST 8 page 6 Manual Lid Lock See M...

Page 3: ...ctly If hoses are installed properly Automatic Temperature Control may be stuck in low resistance range See Test 5 page 5 Lid Lock Failure dL flashes if the following conditions occur Lid is not closed completely due to interference Check for lock interference with lid or lock bezel Wash media buildup is preventing the lock bolt from extending Machine motor control detects open lid switch when att...

Page 4: ...interface assembly is properly inserted into the front console 7 If both visual checks pass replace the user interface assembly See Reinstalling the Electronic Assemblies page 6 8 Plug in washer or reconnect power 9 Follow procedure under Activation of Console and Indicators Diagnostic Test mode page 2 to verify repair 10 If indicators still do not light the machine motor control has failed Unplug...

Page 5: ...present 3 Plug in washer or reconnect power 4 Remove all clothes from the machine 5 Select POWER wash cycle NORMAL Wash Rinse Temp WARM COLD START 6 After the tub fills and starts to wash stop the machine 7 Measure the water temperature and verify it is 85 5 F 29 3 C If the water temperature is correct ATC is functional If the water temperature is incorrect then go to step 8 8 Unplug washer or dis...

Page 6: ...ed a problem exists in the lid lock Replace the lid lock 5 If the Manual Lid Switch or Manual Lid Lock tests in step 1 failed the lock may be stuck or the lock is defective Unplug washer or disconnect power Replace Lid Lock Assembly Repeat the Manual Lid Switch and Manual Lid Lock tests on page 2 to verify repair ACCESSING REMOVING THE ELECTRONIC ASSEMBLIES There are two electronic assemblies the ...

Page 7: ...t pen dant 5 secondes et l afficheur à deux caractères du temps restant estimé présente 88 Si le résultat n est pas ce qui est décrit ci dessus il est possible que la séquence de pressions sur la touche n ait pas été exécutée conformément à la description respect de la durée de chaque étape pour que l opération puisse réussir Répéter l étape 2 Si cela ne réussit toujours pas voir à la page 8 Diagn...

Page 8: ...pression sur un bouton sélection de programme durant une période de 5 minutes le module de commande quitte automatique ment le mode de diagnostic et passe au mode d attente Manuel Électrovannes d admission d eau Voir Activation manuelle ci dessus Pour contrôler l électrovanne d admission D EAU PROPRE sélectionner ou appuyer sur les touches comme suit WHITES START activation de l électrovanne Eau p...

Page 9: ...nctionnement la permutation illumination extinction des témoins et l émission d un signal sonore lors des pressions sur les touches NOTE Lors d une pression sur SOIL LEVEL SPIN SPEED ou LOAD SIZE et WASH RINSE TEMP on doit observer la permutation simultanée illumination extinction de tous les témoins au dessus de ces boutons Si l un des événements suivants se produit durant les étapes décrites ci ...

Page 10: ... à plusieurs reprises sur le bouton de mise en marche POWER et si le tuyau du contacteur manométrique n est pas coincé ou déformé remplacer le module de commande machine moteur Clavier Interface utilisateur défaillance Clignotement de F puis 2 lors du Mode de test de diagnostic en cas de détection d une touche bloquée Mode d attente en cas de non concordance interface utilisateur Voir TEST no 4 pa...

Page 11: ...E TEST no 1 Connexions d alimentation Pour ce test on suppose que la tension appropriée est disponible sur la prise de courant 1 Débrancher la laveuse ou déconnecter la source de courant électrique 2 Accéder au module de commande machine moteur Voir à la page 14 Modules électroniques Accès et dépose 3 Avec un ohmmètre vérifier la continuité entre la broche neutre N de la prise de courant et la bro...

Page 12: ...de l interface utilisateur est convenablement inséré dans le module de la console 3 Si le résultat des deux contrôles visuels est satisfai sant remplacer le module de l interface utilisateur 4 Brancher la laveuse ou reconnecter la source de courant électrique 5 Suivre la procédure décrite à la section Activation du mode test de diagnostic pour console et témoins page 9 pour vérifier l efficacité d...

Page 13: ... l infini que les valeurs indiquées sur le schéma du câblage un problème affecte le bobinage du moteur de la pompe ou la connexion entre le module de commande machine moteur et la pompe Passer à l étape 5 5 Incliner la machine vers l avant pour accéder au fond de la machine et aux pompes Voir figure 1 page 14 6 Effectuer des mesures de résistance sur le moteur de la pompe Débrancher le connecteur ...

Page 14: ...la patte de blocage du sélecteur de programme et faire tourner le sélecteur de programme dans le sens antihoraire 7 Il y a en bas du panneau de la console trois pattes de blocage fixant le module de l interface utilisateur sur le panneau de la console Exercer doucement une pression sur les pattes de blocage avec un tournevis à lame plate pour pouvoir dégager le module de l interface utilisateur Mo...

Page 15: ...BLACK RD WHIT VLT WHIT VLT RD ORN Valve Thermistor Thermistance d électrovanne P9 P8 P7 P6 P10 P11 P12 Motor Rotor Position Sensor User Interface Lid Lock Lid Switch Verrou du couvercle Contacteur du couvercle Interface utilisateur Capteur de position du rotor du moteur P5 P13 P4 Drain Pump Pompe de vidange Recirc Pump Pompe de recirculation 3 Phase BPM Motor Moteur à aimant permanent 3 phases 120...

Page 16: ...PART NO W10092760A PAGE 16 PIÈCE No W10092760A 09 07 FOR SERVICE TECHNICIAN ONLY DO NOT REMOVE OR DESTROY POUR LE TECHNICIEN SEULEMENT NE PAS ENLEVER NI DÉTRUIRE WIRING DIAGRAM SCHÉMA DE CÂBLAGE ...

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