Commu. Error Analysis
1. When the device is connected and powered on, it will carry out the
communication check automatically.
2. You may get any of below 3 feedbacks in about 40 seconds:
a). IDU commu. fault, please check the IDU and communication
wire;
b). ODU commu. fault, please check ODU and communication
wire;
c). Communication normal, Please press OK for information.
(When OK pressed, it will go to “Commu. Similation—Information
inquiry” directly)
Note: If you get c) result but E1 still shows, the indoor PCB is faulty
and need to be replaced.
3. If you want to check the communication again, go to “Commu.
Error Analysis—Online check”.
4. Self-check
This function is to ensure the communication check function of the
device is normal.
Disconnect S (only L, N connected) and turn on the A/C unit, select
“Commu. Error Analysis ----self-check”, you will get the feedback in
about 10 seconds.
Note: Self-check is unnecessary for each analysis.
2. There is a clip inside the terminal of connection
wire. Always make the front side face you when
you insert the terminal into the pins. Or you
cannot press the clip when you want to put the
terminals out of the pins.
3. Watch the sequence of L, N and S when you
connect the device to the terminal.
Clip
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