Samsung APH289SEF Service Manual page 31

Troubleshooting
5-3-5 When the Air flow blade(right/left) of right side does not operate.
1. Causes of Failure
1) Cut or poor contact of motor connecting harness of the Air flow blade(right/left) of right side.
2) Defect by device hanging.
3) Poor Main PCB.
4) Poor stepping motor.
2. Inspection Items
1) Contact of motor connecting harness of the Air flow blade(right/left) of right side?
2) Output wave style from panel PCB port(PORT) during motor on?
3. Inspection Procedure
Turn on and turn the Air flow blade(right/left)
Check swing of the Air flow blade(right/left)
Check connector wire, cut or wrong?
Check voltage between Main PCB
CN201 No. #11, 12 and GND, DC12V?
Check wave style from Main PCB
CN201 No. #7, #8, #9, #10, spherical?
Exchange the Air flow blade(right/left) of right side.
30
on with remote control.
of right side, OK?
No
No
Yes
Yes
Yes Good motor of the Air flow
blade(right/left) of right side.
Inspect and exchange
Yes
connection harness.
No
Exchange panel PCB.
No
Inspect and exchange U202.
Samsung Electronics