LG LBNG3061YL Service Manual page 36

The Outdoor Unit does not operate at all.
Trouble 4
Is the LCD of wired remote controller
operate normally when operations ON?
Is the Connection between CN-Power of
indoor unit and terminal block?
Is the connection of cable between indoor
and outdoor unit right?
Is the voltage of CN-POWER ①, ③ in
outdoor PCB Ass'y about AC220V / 240V ?
Is the operation of outdoor Ass'y right?
(IC04D, IC01A)
Replace the PCB Ass'y.
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Only for training and service purposes
YES
NO
NO
YES
NO
YES
NO
YES
NO
NO
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Refer to the self-diagnosis function.
Check the connecting state of connector
Indoor Outdoor
1(Brown) 1(Brown)
2(Blue) 2(Blue)
3(Green/YL) 3(Green/YL)
4(Red) 4(Red)
Check the Fuse of Outdoor PCB Ass'y.
Check the connecting state of wires.
Replace the parts.
LGE Internal Use Only