LG Electronics L8004RY4, HB8004RA4, HB8004RB4, M1004R, M8004RY4, HB1004R Cn-Ac/Dc Ok? Yes

Troubleshooting Guide

Possible Trouble 4 FAN does not operate.

Is the voltage NO.1 or 2 or 4		NO
of IC01M DC 5V?
	YES
Is the voltage NO.16 or 15 or 13		NO
of IC01M 0V?

YES

•Check the RY-Hi or RY-Med or RY-Lo.

•Check the wiring diagram.

Possible Trouble 5 Remote controller does not operate.

Is the voltage of Battery		NO
over 2.3V?
	YES
Is the voltage No.10		NO
of CN-AC/DC on AC PCB
Ass'y DC 5V?
	YES
Is the connection of		NO
CN-AC/DC OK?

YES

• Replace Receiver Ass'y.

• Replace IC01M.

• Replace IC01M.

• Replace the battery.

•Check the PCB pattern.

•Check the PCB pattern.

•Connect connector to CN-AC/DC exactly.

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