Communication Error - Samsung AR07TXCAAWKNEU Service Manual

9-2 Communication Error

9-2-1 Communication Error
Indoor display
7 SEG DISPLAY
C101/C102 Communication error(Indoor<->outdoor)
Outdoor display
: LAMP ON : LAMP OFF
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
DESCRIPTION
: LAMP BLINK
Restart after power o .
Is the communication erroroccurred again?
YES
Is theconnection of power cable and
communication cable normal?
YES
Is the power is normal?
(check theLED Lamp)
YES
Exchange the indoorunit PBA.
YES
Is the communication erroroccurred again?
YES
Exchange the outdoorunit PBA.
1min. Time out Comm.
Abnormal Communication
NO
Terminatetheservice.
NO
Correct thewrong cable.
NO
Exchange the PBA of no powerunit
NO
Terminatetheservice.
SAMSUNG ELECTRONICS
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