Samsung Electronics
4-29
4-4-6 Outdoor Fan motor error
1.Checklist :
1) Are the input power voltage and the power connection correct?
2) Is the motor wire connected to the outdoor PBA correctly?
3) Is there no assembly error or none-assembly in the terminal of motor wire connector?
4) Is there no obstacle at the surrounding of motor and propeller?
2. Troubleshooting procedure
Yes
Yes
Power off and Separate the Fan motor wire
from CN901 on Outdoor PBA
PBA problem or Motor problem
Change the PBA first and check the operation
No
Yes
Does the fan rotate?
Terminate the service
Exchange the Fan motor
No
No
No
Follow the check procedure of outdoor unit
power supply error check
Exchange the Outdoor PBA
Is the fan error appeared again?
Is there short among each pin #1~#6
Is the voltage of CN901 #3-#5 and #3-#6 with in
1Vdc~15Vdc during the operation?
Is the voltage of CN901 #1-#3 over 250Vdc
Reassemble the fan wire and input the power
again
Exchange the Fan motor
Restart after power off.
Yes
No
