Mitsubishi Electric PUZ-A18NHA6 Service Manual page 39

Abnormal point and detection method
Check code
Remote controller transmission error
(E0)/signal receiving error (E4)
1
2
1
2
Remote controller control board
1
2
Remote controller transmission error (E3)/
signal receiving error (E5)
1
2
1
2
Indoor/outdoor unit communication
error (Signal receiving error)
1
2
3
Case
1
2
3
4
5
6
1
1
2
3
4
5
6
1
2
3
4
5
6
Judgment and action
1
2
3
o
4
1
1
2
3
4–6
1
2–4
5
6
1–3