Fault Diagnosis By Symptom; Troubleshooting - Samsung AQV09UGAN Service Manual

12-2-1Com m uni cati on err or
1. Checkl i st:
1)I s the com m uni cati on cabl e betwe en the i nd ooruni tand outdooruni tconnect ed correctl y?
2)I sn' tthe pow ercabl e and com m uni cati on cabl e error?
2. Troubl eshooti ng procedure
Restart after power off.
Is the communication error
occurred again?
YES
Is the connection of power cable
and communication cable normal?
YES
Exchange the indoor unit PBA.
Is the communication error
occurred again?
YES
Exchange the outdoor unit PBA.
Sam sung Ele ctroni cs
W hen
NO
NO
NO
i s di pl ayed
Terminate the service.
Correct the wrong cable.
Terminate the service.
12-2