Abnormality Alarms / Abnormality Indications - Whirlpool WFC80602RT-D Service Manual

VII. Abnormality Alarms / Abnormality Indications
7.1 Abnormal water inflow
When the water inflows, if the water pressure is detected too low for 4 min, or the water level does not reach the preset
within 20 min, it will enter the Water Inflow Fault Alarm mode. "E11" will be displayed. The buzzer will sound 0.05 s ON -
0.05 OFF for 6 times. Except for the Start / Pause button and the Power switch button, all the buttons are locked. Save the
operating parameters before fault. Press the Start button to clear and continue the previous state.
7.2 Abnormal drainage
If the drainage time exceeds 8 min and the reset water level has not been reached (2 # water level), it will enter the Abnormal
Drainage Fault Alarm mode. Shows "E12" . At the same time, the buzzer beeps for 6 seconds with 0.05 s ON & 0.05 s
OFF. All the buttons except the power button are locked. Save the operating parameters before fault. Press the Start button
to clear and continue the previous state.
7.3 High current lock
In the final spinning, when detecting high current, perform a defoaming treatment firstly. If still detecting several consecutive
over-current, it will enter the Spinning Load Abnormality Fault alarm mode, displaying "E901". Meanwhile, the buzzer beeps
6 times in 0.05 second ON-0.05 OFF. Except for the Start / Pause button and the Power switch button, all the buttons are
locked. Save the operating parameters before fault. Press the Start button to clear and continue the previous state.
7.4 Abnormal door lock
If the locking or unlocking fails for three consecutive times, it will enter the Door Lock Abnormality Fault alarm mode. "U4"
will be displayed. Meanwhile, the buzzer beeps 6 times in 0.05 second ON-0.05 second OFF. Except for the Start / Pause
button and the Power switch button, all the buttons are locked. Save the operating parameters before fault. Press the Start
button to clear and continue the previous state.
7.5 Water level sensor abnormality
When the detected water level frequency is greater than 81.92 kHz or less than 16.384 kHz, it indicates the water level sensor
is open-circuited. It will enter the Water Level Sensor Abnormality Fault alarm mode. Meanwhile the buzzer beeps 6 times
with 0.05 s OFF-0.05 s OFF.
7.6 Water heating pipe abnormality
When the heating tube is turned on, or the heating tube temperature rise is not more than 2 ℃ after operating for 4 minutes,
or the tube operating signal can not be detected for 4 consecutive seconds, it indicates the water heating tube relay is
faulty or the water heating tube harness is faulty. It will enter Water Heating Tube Working Abnormal Failure alarm mode.
"E7C" is displayed. Meanwhile the buzzer sounds 6 times in 0.05 seconds ON-0.05 seconds OFF.
See the table below for fault details:
Code Item
Inlet water
E11
abnormal
Abnormal drain
E12
water
E901 High current lock
Voltage of power is
E902
too large
Voltage of power is
E904
too small
Motor runs
E908
abnormally
Current detection
E910
loop is abnormal
IPM abnormal
E920
E940 Hall IC abnormal
Doorlock abnormal
U4
U3 Spin eccentricity
Judging Condition
Did not reach the set water level in 20 minutes when inleting
water, or did not reach the spin water level in 4 minutes.
When draining water, washer doesNOT reach the reset water
level in 8 minutes.
When the motor is running, the current exceeds the set value, or
the defoaming request is issued for the 4th time
DC voltage detected to 385V, more than 1.1 seconds
DC voltage is detected below 136V, more than 2 seconds.
No change in motor position signal in 20 seconds
1. When the motor is working, the current detection loop current
is less than 0.4A.
2. Current detection loop current is greater than 0.3A when the
motor is stopped
The IPM's Fault signal is valid;
(IGBT damage, voltage too small, over current)
HHH or LLL signal detected in 6ms
Unlocked three times in a row without lifting; locked three
times in a row without locking
In the final spin process, after 3 times adjustments, the
19
Release
Decision processing
method
Press"Start/
Stop washer
Pause"
Stop washer
Press"Start/
（Doorlock closed） Pause"
Press"Start/
Stop washer
Pause"
Stop washer, power
Press"Start/
off automaticly after 4
Pause"
seconds
Press"Start/
Stop washer
Pause"
Press"Start/
Stop washer
Pause"
Press"Start/
Stop washer
Pause"
Press"Start/
Stop washer
Pause"
Press"Start/
Stop washer
Pause"
Press"Start/
Stop washer
Pause"
Stop washer Press"Start/