LG LRFCS25D3 Series Service Manual page 35

9-4 HOW TO CHECK THE FAN-ERROR
After sending a signal to the fan, the MICOM checks the BLDC fan motor s lock status. If there is no feedback signal from the
BLDC fan, the fan motor stops for 10 seconds and then is powered again for 15 seconds. To determine that there is a fan
motor malfunction, this process is repeated 3 times. If the fan motor is determined to be defective, the error code will be shown
in the display for 30 minutes.
At this point, the process will be repeated until the fan motor operates normally. If normal operation is achieved, the error
display is erased and the MICOM is reset automatically.
Normal drive
Pause 30min
No signal
15s 15s
10s
No signal
20s 15s
10s
Error Display
15s
10s
15s
10s Pause 30min
35
Repeat
20s
10s
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