Compressor System Sensor Abnormality - Daikin H Series Service Manual

Troubleshooting

4.16 Compressor System Sensor Abnormality

H0
Remote
Controller
Display
 The system checks the supply voltage and the DC voltage before the compressor starts.
Method of
 The system checks the compressor current right after the compressor starts.
Malfunction
Detection
 The supply voltage and the DC voltage is obviously low or high.
Malfunction
 The compressor current does not run when the compressor starts.
Decision
Conditions
 Disconnection of reactor
Supposed
 Disconnection of compressor harness
Causes
 Defective outdoor unit PCB
 Defective compressor
Service Diagnosis
SiUS04-924_A
91