LG LBNG3061YL Service Manual page 39

When compressor does not operate normally.
Trouble 5-2
n CT Error (Error Code ⑧ )
Is the LCD of wired remote controller show
'CH08'?
Is the current transformer(CT) in Main PCB
Ass'y right?
Is the connecting state of connectors right?
(CN-IPM, U.V.W and Compressor wires)
Is the indoor/outdoor fan locked?
Is the discharge temperature of Indoor unit
right(11°C~17°C) in the cooling mode?
Is the refrigerant pressure right?
Replace the PCB Ass'y.
• Main PCB Ass'y(Outdoor)
• Control Box Ass'y(Outdoor)
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Only for training and service purposes
NO
YES
NO
YES
NO
YES
NO
YES
NO
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YES
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• Check the state of connecting cable
(3 line) bewteen Indoor and Outdoor Unit .
• Check fuse, Noise Filter, PTC, etc.
Check the PCB pattern(resoldering)
Check the state of connecting wires.
Check the indoor/outdoor fan motor.
Check the compressor.
Supply the refrigerant
LGE Internal Use Only