2-12 communication error – Sunlight Supply Samsung Programmable Thermostat for Split Systems User Manual

Page 108

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12-45

Samsung Electronics

12-2-12 Communication error

1. Checklist

:

1) Is the communication cable between the indoor unit and outdoor unit connected correctly?

2) Isn’t the power cable and communication cable wiring error?

2. Troubleshooting

procedure

Yes

Restart after power off.

Is the communication error

occurred again?

Isn't the power cable and

communication cable wiring error?

Exchange the outdoor unit PCB.

Terminate the service.

Correct the wrong wiring.

Is the connection of

communication cable normal?

Correct the connection of

communication cable.

Yes

Yes

No

No

No

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