Samsung AQ09VFUAGM/CV Service Manual page 72

When the Up/Down louver motor does not operate (Initial Diagnosis) (Not displayed)
1.Checklist :
1) Is the input power voltage normal?
2) Is the Up/Down louver motor properly connected with the connector? (CN61)
2. Troubleshooting procedure
Unplug the power cord and plug it a er 30seconds
later.
Is the lamp blinking?
YES
Is the connected louver wire?
YES
Does opera on start when swing
bu on of the remote control unit
pushed?
NO
Is the voltage changeable at the
pin#2~#5 of CN61(louver
connector)?
YES
Up/Down louver motor is faulty.
12-5
NO
Check the as in the procedure.
No power.
NO
Connect the wire PBA to louver motor
YES
Normal
NO
Exchange the PBA