LG LBC24360ST Service Manual - Page 38

How To Check The Fan-error

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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. No signal Error Display 15s 15s 15s Normal drive 10s 10s No signal 20s 15s 15s Repeat 20s Pause 30min 10s 10s Pause 30min 10s 38

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9-4 HOW TO CHECK THE FAN-ERROR
No signal
Error Display
15s
10s
15s
10s
15s
Normal drive
No signal
Repeat
20s
10s
15s
10s
Pause 30min
Pause 30min
10s
15s
20s
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.
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