Communication Error - Samsung AR TSFY WKNCV Series Service Manual

9-2 Communication Error

9-2-1 Communication Error
Indoor display
7-SEG DISPLAY
C101/C102
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?
Is the connection of power cable and
communication cable normal?
Is the power is normal?
(check the LED Lamp)
Exchange the indoor unit PBA.
Is the communication error occurred again?
Exchange the outdoor unit PBA.
DESCRIPTION
Communication error(Indoor<->outdoor)
LED OFF
YES
YES
YES
YES
YES
1min. Time out Comm.
Abnormal Communication
NO
Terminate the service.
NO
Correct the wrong cable.
NO
Exchange the PBA of no power unit.
NO
Terminate the service.
9-2