SiBE05-722EE Troubleshooting
Service Diagnosis 91
4.20 DC Voltage / Current Sensor Abnormality
Error Code
H8
Method of Error
Detection
DC voltage or DC current sensor abnormality is identified based on the compressor running
frequency and the input current.
Error Decision
Conditions
If the error repeats, the system is shut down.
Reset condition: Continuous run for about 60 minutes without any other error
Supposed
Causes
Defective outdoor unit PCB
Troubleshooting
Replace the outdoor unit PCB (main PCB).
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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