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Service Procedures
3
SM830063
(3) Symptom: LCD on the remote controller displays “CHECK E02”. (Unusual communication between remote
controller and indoor unit)
1. Troubleshooting
OK
No
NG
Yes
0334_M_I
Start
Repair the wiring.
Replace the remote controller.
Is the No. 1 line wire (red) for the
remote controller connected to
another line (2 or 3) or are No. 1
and No. 3 (black) wired reversed?
Judge with the remote control unit by
self-diagnostics function.
(To avoid misjudgment, always
remove the No. 1 line of the remote
controller wiring from the indoor
unit terminal plate.)
Replace the indoor unit PCB.
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