Mitsubishi MXZ-2A52VA Service Manual download pdf (Page 69)

Check of outdoor fan motor

• Fan motor does not operate or stops operating shortly after starting the operation.

Yes

(Fixed to either 5V or 0V DC)

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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Mitsubishi MXZ-2A52VA Service Manual Page 69