ACXA73C21520 PANASONIC INDOOR PCB [CS-S13TKH-1]

PANASONIC AIR CONDITIONER SPARE PARTS MALAYSIA
ORIGINAL PANASONIC AIR CONDITIONER SPARE PARTS SUPPLIER
PANASONIC AIR CONDITIONER PCB SUPPLIER
PANASONIC AIR CONDITIONER INDOOR PCB
CS-S13TKH-1 INDOOR PCB
ACXA73C21520 Electronic Controller Main
ACXA73C21520 Motherboard 
ACXA73C21520 PCB
ACXA73C21520 IC Board Main
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H11 Error Code : - Indoor / Outdoor Abnormal Communication
Parts to verify

1. Faulty outdoor unit PCB .
2. Faulty indoor unit PCB .
3. Indoor-outdoor singal transmission error due to wrong wiring .
4. Indoor-outdoor signal transmission error due to breaking of wire in the indoor and outdoor units .
5. Indoor-outdoor singnal transmission error due to disturbeb power supply waveform .

1. Faulty connector connection
2. Faulty sensor
3. Faulty PCB