Communication Error - Samsung TH026EAV Service Manual

12-2-13 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 error?
2. Troubleshooting procedure
and communication cable error?
2 Micom(Inverter + Main) model?
Exchange the outdoor unit PCB.
Samsung Electronics
24867A(1)_TH026EAV_1.indd 15
Restart after power off.
Is the communication error
occurred again?
Yes
Isn't the power cable
Yes
Is the connection of
communication cable normal?
Yes
Is it the outdoor
Yes
No
Terminate the service.
No
Correct the wrong wiring.
No
Correct the connection of
communication cable.
No
Exchange the indoor/outdoor unit PCB.
Troubleshooting
12-15
2006-04-03 ｿﾀﾀ・9:49:24