Mitsubishi Electric Mr.Slim PUZ-HA42NKA Service Manual page 30

Check Code Abnormal point and detection method
Abnormal power synchronous
signal
PFC error (Overvoltage/
Undervoltage/Overcurrent)
PFC/IGBT error
(Undervoltage)
Compressor overcurrent interruption
(When compressor locked)
Current sensor error
Overheat protection
:
Abnormal pressure of 63HS
OCH567
Case
1
2
3
4
5
-
1
2
3
1
2
3
4
5
6
1
2
1
2
3
1
2
3
Judgment and action
1
2
3
4
5
1
2
3
1
2
3
4
5
6
1
2
-
1
23
-
-
1
2
3
-