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Service Diagnosis
52
H8
Description
AC CURRENT SENSOR ABNORMALITY
Possible Root
cause
1. Internal wiring broken.
2. Outdoor unit PCB defective.
Troubleshooting
*Remark:
This error is only applicable for model Class 18/24.
Connection correct?
No
Yes
Change outdoor PCB.
Restart the system and check
connector between main board
and IPM board.
Check compressor harness
connection.
Does it connect
properly?
No
Yes
Reconnect it properly.
Reconnect it correctly.