Samsung AQV12PSAX - Fault Diagnosis by Symptom

12-2-1Com m unication error
Sam sung Electronics
W hen is diplayed
1. Checklist:
1)Is the com m unication cable betwe en the indoorunitand outdoorunitconnected correctly?
2)Isn’tthe pow ercable and com m unication cable error?
2. Troubleshooting procedure
12-2
Is the communicaon error
occurred again?
Terminate the service.
NO
Is the connecon of power cable
and communicaon cable normal?
Correct the wrong cable.
NO
YES
Exchange the indoor unit PBA.
Is the communicaon error
occurred again?
Terminate the service.
NO
YES
Exchange the outdoor unit PBA.
YES
Restart aer power off.