SiBE121135_A Troubleshooting for Outdoor Unit
Service Diagnosis 216
7.13 Compressor Sensor System Abnormality
Error Code H0
Outdoor Unit LED
Display
A j 1 i 2 i 3 h 4 h 5 h
∗ LED5 is equipped only on the 5-room model.
Method of Error
Detection
Fault condition is identified by the power supply voltage and the DC voltage which is
detected before the compressor startup.
Fault condition is identified by the compressor current which is detected right after the
compressor startup.
If the error repeats, the system is shut down.
Reset condition: Continuous run for about 5 minutes without any other error
Error Decision
Conditions
The detected value of the power supply voltage and the DC voltage is obviously low or high.
The compressor current does not run when the compressor is started.
Supposed
Causes
Disconnection of reactor
Disconnection of compressor harness
Defective outdoor unit PCB
Defective compressor
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