Mitsubishi Electric Mr.Slim PUZ-HA42NKA Service Manual page 25

10-4. SELF-DIAGNOSIS ACTION TABLE
<Abnormalities detected when the power is turned on>
Check Code Abnormal point and detection method
63L connector open
OCH567
1
2
3
—
4
5
6
1
-
2
3
4
Case
1
-
-
2
3
4
5
6
1
2
3
-
4
Judgment and action