91
18.3.1.7 Communication error between the indoor PCB and display board(IDU Eb/EH 0b)
Power off, then restart the unit
2 minutes later
Replace the indoor main PCB
Yes
Replace the Display board
Check the wirings
and connection
Yes
No
Correct the connection
or replace the wirings
Yes
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)
To Next Page
Loading...
