Whirlpool CGT9000GQ Manual page 9

FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
WASHER
DISPLAY EXPLANATION AND RECOMMENDED PROCEDURE
F 29
DOOR UNLOCK ERROR
The door is unable to unlock after six tries.
Possible Causes
– Misaligned or broken door latch.
– Electrical connections from CCU (DLS2, DL3)
to door lock are damaged.
– Misaligned, broken, or overtightened door hook.
Procedure
1. Clear error code.
2. Unplug the washer or disconnect power.
3. Manually unlock the door (page 15).
4. Ensure that the latch is secured to the front panel.
5. Check for misaligned, broken, cracked, or loose
door hook.
6. Check the electrical connections between CCU
(DLS2, DL3) and latch (see page 15).
If the latch fails to unlock after checking all of the
above, replace the latch.
F 31
OVERHEATING OF MOTOR
The heat sink exceeds 212°F (100°C). If this condition
is met, the CCU resets the MCU, then waits for the
motor to cool down before restarting the motor.
This procedure can repeat up to four times before
F31 is displayed.
Possible Causes
– Improper installation of washer.
– Poor electrical connection from CCU (MS2) to MCU.
Procedure
1. Clear error code.
2. Unplug the washer or disconnect power.
3. Verify the washer is not located near a source
of heat and has proper ventilation.
4. Check the electrical connections between CCU
(MS2) and MCU.
5. Verify the drive motor operation in diagnostic mode.
If, after the above tests, the motor overheats, replace
the motor.
WASHER
DISPLAY
F 33
F 34
F 70
PAGE 9
EXPLANATION AND RECOMMENDED PROCEDURE
PUMP DISCONNECTED
The electrical connection between the pump and the
CCU is lost.
Possible Causes
– Poor connection between CCU (DP2) and drain
pump.
– Pump thermal overload caused by the pump
running for an extended period of time.
Procedure
1. Clear error code.
2. Unplug the washer or disconnect power.
3. Check electrical connection between pump and
CCU (DP2) (see page 15).
4. Check the pump using a diagnostic mode.
If the pump still does not run, replace the pump.
LOAD DETECTED IN WASHER
DURING WASHER CLEANOUT CYCLE
The washer detects a load inside the washer tub
at the beginning of the Washer Cleanout Cycle.
Possible Causes
– Load inside the washer during the Washer
Cleanout Cycle.
– Friction between the drum and bellows material.
Procedure
1. Clear error code.
2. Unplug the washer or disconnect power.
3. Remove clothes from washer drum.
4. Check for misaligned or damaged bellows rubbing
the drum.
If bellows adjustment does not correct the friction issue,
the spin basket will need to be replaced.
COMMUNICATION FAILURE
BETWEEN CCU AND UIC
Communication between Central Control Unit (CCU)
and User Interface Control (UIC) has failed.
Possible Causes
– Electrical connection between CCU and UIC
is damaged.
Procedure
1. Clear error code.
2. Unplug the washer or disconnect power.
3. Verify that the communication cable is connected
in the lower connector of the UIC.
4. Verify continuity in the cable between the CCU
and the UIC.
If, after these procedures, the continuity test fails,
replace the communication cable. If F70 is still
present, replace the CCU.