Panasonic WH-ADF0309J3E5CM Service Manual page 238

ON: Blinking: OFF:
Wireless remote
controller
receiver display
Abnormal
display
P15
P16
Operating
and standby
lamp blinking
P22
alternately
P29
P31
Alarm contents
Insufficient gas level detected
Compressor overcurrent trouble
Outdoor unit fan motor trouble
Outdoor unit fan trouble
Inverter compressor trouble
Indoor unit in group control trouble
238
Error location
 Check the refrigerant cycle (gas leak)
 Trouble with the electronic expansion valve
 Valve (or refrigerant circuit) blockage
 Layer short on the compressor
 Compressor locked
 Check the outdoor unit control PCB
 Check the outdoor unit fan motor, connector
 Layer short on the compressor
 Check the outdoor unit control PCB
 Check the inverter compressor wiring (Open
phase/Reverse phase)
 Compressor actuation failure (include lock)
 Valve (or refrigerant circuit) blockage
 Repair indoor unit which blinking alarm