Air Conditioner Does Not Run - Daikin CTXU25G2V1B Service Manual

Troubleshooting
2.2

Air conditioner does not run.

Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
109
Power supply is OFF
Improper power supply voltage
Improper connection of wire
Incorrect combination of indoor unit and outdoor unit
Battery shortage of remote controller
Invalid address setting
Protection device works
(dirty air filter, refrigerant shortage, over filling, mixed air, etc.)
Transmission error between indoor unit and outdoor unit
(Defective PCB on outdoor unit)
SiBE12-908
Service Diagnosis