Troubleshooting; Communication Error - Samsung AR09FSSYAWTNEU Service Manual

12-1 Cmmunication error
Indoor display
Outdoor display
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 er power
Is the communi
occurred again?
Is the conn on of power cable
and communi on cable normal?
Is the power is normal?
(check the LED Lamp)
Exchange the indoor unit PBA.
Is the communi
occurred again?
Exchange the outdoor unit PBA.
E101/E102 Communication error(Indoor<-
1min. Time out Comm.
Abnormal Communication
p .
on error
YES
YES
YES
on error
YES
NO
Terminate the service.
NO
Correc he wrong cable.
NO
Exchange the PBA of no power unit
NO
Terminate the service.