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SiUS091133 Troubleshooting
Service Diagnosis 126
4.19.2 24/30/36 Class
Remote
Controller
Display
H0
Method of
Malfunction
Detection
The system checks the supply voltage and the DC voltage before the compressor starts.
The system checks the compressor current right after the compressor starts.
Malfunction
Decision
Conditions
The supply voltage and the DC voltage is obviously low or high.
The compressor current does not run when the compressor starts.
Supposed
Causes
Disconnection of reactor
Disconnection of compressor harness
Defective outdoor unit PCB
Defective compressor
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