Communication Error - Samsung AR12TVEAAWKNAP Service Manual

10-2 Communication Error

10-2-1 Communication Error
Indoor display
7-SEG DISPLAY
C101/C102 Communication error(Indoor<->outdoor)
Outdoor display
LED ON LED BLINKING
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
Restart after power off .
Is the communciation error occurred again?
YES
Is the connection of power cable and
communication cable normal?
YES
Is the power is normal?
(check the LED Lamp)
YES
Exchange the indoor unit PBA.
YES
Is the communication error occurred again?
YES
Exchange the outdoor unit PBA.
DESCRIPTION
Abnormal Communication
LED OFF
NO
NO
NO
NO
59
1min. Time out Comm.
Terminate the service.
Correct the wrong cable.
Exchange the PBA of no power unit.
Terminate the service.