Samsung ASV18PULNXEA, Service Manual

Page: 67 / 110

Samsung Electronics
12-2
Communication error
Indoor display ○ ⊙ ⊙ Communication error
Outdoor display ⊙ ● ● 1min. Time out Comm.
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1.Checklist :
1) Is the cable between the indoor unit and outdoor unit connected correctly?
2) Isn't the power cable and communication cable cross?
2. Troubleshooting procedure
Abnormal Communication
Is the communica ti on error
occurred again?
Restart a ft er power o ff .
Terminate the service.
NO
Is the connec ti on of power cable
and communica ti on cable normal?
Correct the wrong cable.
NO
YES
Exchange the indoor unit PBA.
Is the communica ti on error
occurred again?
Terminate the service.
NO
YES
Exchange the outdoor unit PBA.
YES
Is the power is normal?
(check the LED Lamp)
Exchange the PBA of no power unit
NO
YES