Outdoor Fan Motor Error - Samsung AQV18UGAX Service Manual

12-2-11.Outdoor Fan motor error

Indoor display ⊙
Outdoor display ●
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
Restart after power off.
Does the fan rotate?
YES
Reassemble the fan wire and input
Isthe fan error appeared again?
YES
Isthe voltage of CN901 #1 -#3 over
250Vdc
YES
Isthe voltage of CN901 #3
#3-#6 with in 1Vdc~15Vdc during
the operation?
YES
PBA problem or Motor problem
Change the PBA first and check the operation
Exchangethe Fan motor
12-12
○ ⊙ Outdoor error
○ ○ Outdoor fan error
the power again
NO
-#5 and
NO
Power off and S eparatethe Fan motor wire from
CN901 on Outdoor PBA
Isthere short among each pin
#1~#6
NO
Terminate the
service
NO
Followthe check procedure of outdoor unit power
supply error check
NO
Exchange the Outdoor PBA
YES
Exchangethe Fan
motor