Mitsubishi Electric Mr.Slim PUZ-HA42NKA Service Manual page 26

Abnormal point and detection method
Check Code
63H connector open
2 connector open
Miswiring of indoor/outdoor unit
connecting wire
Miswiring of indoor/outdoor unit
connecting wire (converse wiring or dis-
connection)
Start-up time over
OCH567
Case
1
-
2
3
4
1
2
3
4
1
2
3
4
5
6
7
8
1
2
4
-
5
-
6
7
8
1
2
7
8
Judgment and action
1
2
3
4
1
2
3
4
1
2
-
3
4–6
7
8
-
1–8