Samsung ASV18PULNXEA, Service Manual

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Outdoor Fan motor error
Indoor display ⊙ ○ ⊙ Outdoor error
Outdoor display ● ○ ○ Outdoor fan 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
Does the fan rotate?
Power o ff and Separate the Fan motor wire from
CN901 on Outdoor PBA
NO
YES
Is the fan error appeared again?
Reassemble the fan wire and input the power again
YES
Is the voltage of CN901 #3-#5 and
#3-#6 with in 1Vdc~15Vdc during
the opera ti on?
YES
Exchange the Outdoor PBA
Terminate the
service
NO
NO
PBA problem or Motor problem
Change the PBA fi rst and check the opera ti on
Exchange the Fan motor
Is there short among each pin
#1~#6
YES
Exchange the Fan
motor
Is the voltage of CN901 #1-#3 over
250Vdc
NO
Follow the check procedure of outdoor unit power
supply error check
NO
YES
Restart a ft er power o ff .