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SiMT041311E
Troubleshooting
Service Diagnosis
152
2.23 Compressor System Sensor Abnormality
Error Code
H0
Method of Error
Detection
The system checks the DC voltage before the compressor starts.
Error Decision
Conditions
The voltage converted from the DC current before compressor start-up is out of the range
0.5 ~ 4.5 V.
The DC voltage before compressor start-up is below 50 V.
Supposed
Causes
Broken or disconnected harness
Defective outdoor unit PCB
Troubleshooting
(R20445)
Caution
Replace the harness.
Replace the outdoor unit
PCB.
Check the compressor harness.
NO
YES
Is the harness broken?
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.