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