LG A2UN186FA0 Service Manual page 100

When compressor does not operate normally.
Trouble 7-4
DC Low Voltage Error (Error Code
Does the operating LED in display PCB
Ass'y blinks 10 times?
Is the connecting state of connectors in out-
door PCB Ass'y right?
(CN-DC, CN-AC)
Is the voltage of capacitor over 187Vdc?
Is the connecting state of wires in outdoor
unit?
Replace the PCB Ass'y.
• Main PCB Ass'y (Outdoor)
)
YES
NO
YES
NO
YES
NO
YES
-100-
Reconnect the connector.
Check the wiring state.
Check the electrical wiring diagram (Colors)