• Fan motor does not operate or stops operating shortly after starting the operation.
Yes
Yes
Yes
No
No
(Fixed to either 5V or 0V DC)
Start
Check the connection between the
connector CN931 and CN932.
Disconnect CN932 from outdoor electronic control P.C. board, and
turn on the power supply.
Rotate the outdoor fan motor manually and measure the voltage of
CN931.
Between 1(+) and 5(-)
Between 2(+) and 5(-)
Between 3(+) and 5(-)
Is the resistance between each terminal
of outdoor fan motor normal?
Does the outdoor fan motor rotates smoothly?
Does the voltage between each terminal become 5V DC and 0V DC
repeatedly?
Replace the outdoor DC fan motor.
Replace the outdoor electronic control P.C. board.
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