Troubleshooting Guide; Troubleshooting Tests - Whirlpool WTW6700TW0 Mode D'emploi

FOR SERVICE TECHNICIAN ONLY – DO NOT REMOVE OR DESTROY

TROUBLESHOOTING GUIDE

POSSIBLE CAUSE/TEST
NOTE: Possible Cause/Test must
PROBLEM
be performed in the sequence
shown for each problem.
WON'T POWER
UP
1. Supply connections. See
(No response
TEST #1, at right.
when buttons are
2. Unplug washer or disconnect
pressed.)
power.
WON'T START
3. Check harness connections.
CYCLE
4. User interface assembly. See
(No response TEST #4, page 5.
when Start but-
ton is pressed.)
WON'T SHUT 1. User interface assembly. See
TEST #4, page 5.
OFF WHEN
EXPECTED
2. Lid switch. See TEST #8,
page 6.
CONTROL
User interface assembly. See
WON'T ACCEPT
TEST #4, page 5.
SELECTIONS
1. Check water connections to
WON'T
machine.
DISPENSE
2. Check for plugged screen in
water source.
3. Log valve. See TEST #2, at
right.
WON'T FILL 1. Check water connections to
machine.
2. Check for plugged screen in
water source.
3. Log valve. See TEST #2, at right.
4. Unplug washer or disconnect
power.
5. Check harness connections.
1. Unplug washer or disconnect
OVER FILLS
power.
2. Check pressure hose connections.
3. Check to see if the pressure
hose has a hole, is pinched or
plugged.
4. Water level and calibration.
See TEST #6, page 5.
1. Make sure basket is floating.
WON'T AGITATE
2. Unplug washer or disconnect
power.
3. Check harness connections.
4. Lid switch. See TEST #8, page 6.
5. Motor. See TEST #3, at right.
1. Lid switch. See TEST #8,
WON'T SPIN
page 6.
2. Unplug washer or disconnect
power.
3. Check harness connections.
4. Motor. See TEST #3, at right.
1. Check drain hose installation.
WON'T DRAIN
2. Check for plugged drain hose.
3. Drain pump. See TEST #7, page 5.
1. Check for swapped water
INCORRECT
connections to machine.
WATER
TEMPERATURE
2. ATC (Automatic Temperature
Control). See TEST #5,
page 5.
PART NO. W10026628A
POUR LE TECHNICIEN SEULEMENT – NE PAS ENLEVER NI DÉTRUIRE
POSSIBLE CAUSE/TEST
NOTE: Possible Cause/Test must
PROBLEM
be performed in the sequence
shown for each problem.
ALL HOT FILLS 1. ATC thermistor stuck in high
resistance range.
2. ATC (Automatic Temperature
Control). See TEST #5, page 5.
WON'T 1. Unplug washer or disconnect
power.
RECIRCULATE
WATER
2. Check for plugged recirculation
hose.
3. Check for leaks in recirculation
system.
4. Recirculation pump. See
TEST #7, page 5.
DISPLAY IS
See Display Fault/Error Codes,
FLASHING page 3.

TROUBLESHOOTING TESTS

TEST #1 Supply connections
This test assumes that proper voltage is present at the
outlet.
1. Unplug washer or disconnect power.
2. Access the machine/motor control assembly. See
Accessing & Removing the Electronic Assemblies,
page 6.
3. With an ohmmeter, check for continuity between the
neutral (N) terminal of the plug and P13-1 on the
machine/motor control. See figures 3 and 4, page 15.
If there is continuity, go to step 4.
If there is no continuity, replace the power cord.
4. In a similar way, check the continuity between the L1
terminal of the plug and P13-3 on the machine/motor
control. See figures 3 and 4, page 15.
If there is continuity, go to step 5.
If there is no continuity, replace the power cord.
5. Visually check that the P13 connector is inserted all
the way into the machine/motor control.
6. Visually check that the user 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 washer or disconnect power.
Replace the machine/motor control assembly.
Plug in washer or reconnect power.
TEST #2 Log Valve
This test checks the electrical connections to the valves,
and the valves themselves.
1. Check the relays and electrical connections to the
valves by performing the steps under Diagnostic:
Manual, then Manual: Water Valves, page 2. Each
step in the test activates a group of valves. The
following steps assumes one (or more) valve(s)
failed to turn on.
PAGE 4
2. For the valve(s) in question check the individual
solenoid valves:
Unplug washer or disconnect power.
Disconnect connector P1 and P2 from the
machine/motor control. See figure 4, page 15.
Check harness connection to solenoid valves.
3. Check resistance of valve coils at contacts P1 and P2
shown in the wiring diagram on page 16. Resistance
should be between 790–840 Ω.
If resistance readings are tens of ohms outside of
range, replace the entire log valve assembly.
If resistance readings are within range, replace the
machine/motor control assembly.
4. Reconnect connectors P1 and P2 to the
machine/motor control.
TEST #3 Motor Circuit
This test checks the wiring to the motor and rotor
position sensor; and the motor and rotor position sensor
themselves.
NOTE: Drain water from tub.
1. See Activation of Manual Diagnostic Test Mode,
page 2 and check the motor and electrical
connections by performing the Spin test under
Manual: Motor, page 2. The following steps assumes
that this step failed.
2. Unplug washer or disconnect power.
3. Check to see if basket will turn freely.
If basket turns freely, go to step 4.
If basket does not turn freely, determine what is
causing the mechanical friction or lock up.
4. Remove the console to access the machine/motor
control assembly. See Accessing & Removing the
Electronic Assemblies, page 6.
5. Visually check that the P5 and P10 connectors are
inserted all the way into the machine/motor control.
If visual checks pass, go to step 6.
If visual checks fail, reconnect P5 and P10 and
repeat step 1.
6. Visually check that the P5 and P10 connectors are
inserted all the way into the machine/motor control.
With an ohmmeter, verify resistance values as
shown below:
Check
Resistance Go to
between
values step 7 if
connector
should be: values are:
pins
1-2
Much higher
31 Ω ± 5 Ω
P5
than 31 Ω
1-3
6-5 Much higher
or much
6-4
1.5 kΩ ± 100 Ω
lower than
P10
6-3
1.5 kΩ
1-7 600 Ω to 21.2 kΩ Out of range
7. Tilt machine forward to access the bottom of the
machine and the drive motor area. See figure 1,
page 14. Remove the motor bolt, then the motor
cover to access the motor connections. See figure 2,
page 14.
8. Visually check the mounting bracket and electrical
connections to the motor and rotor position sensor
board.
If visual check passes, go to step 9, page 5.
If visual check fails, reconnect the electrical
connections, reassemble stator and motor cover
and repeat step 1.
PIÈCE N
Go to
step 12 if:
Resistances
at all
connectors
are correct
o
W10026628A