Mitsubishi PUHZ-SHW80YAA Service Manual page 22

Check code
Abnormal point and detection method
PFC error (Overvoltage/
Undervoltage/Overcurrent)
PFC/IGBT error
(Undervoltage)
Overheat protection
Abnormal pressure of 63HS
Compressor overcurrent interruption
(When compressor locked)
Current sensor error or input current error 1
Low pressure (63L operated)(SW100/
SHW80/SHW112 only)
OCH651
1
2
3
1
:
2
3
1
2
3
1
2
3
4
5
2
3
4
1
2
3
4
5
6
Cause
1
2
3
1
23
1
2
3
1
2
3
4
5
1
2
3
4
1
2–4
5
6
Judgment and action