10.3.1.7 Communication error between the indoor PCB and display board(IDU Eb/EH 0b)
10.3.1.8 Inverter compressor drive malfunction(IDU P4/ PC04)
The trouble shooting is same with IPM module protection.
10.3.1.9 Communication malfunction between indoor two chips (IDU FA)
Shut off the power supply and
turn it on 2 minutes later.
Is it still displaying
the error code?
YES
Replace the indoor main
PCB.
The unit is operating normally. NO
10.3.1.10 Refrigerant Leakage Detection(IDU EC/ EL 0C)
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