33
Is the resistance between each ter-
minal of outdoor fan motor normal?
(Refer to 11-4.)
Check the connection between the
connector CN931 and CN932.
Disconnect CN932 from outdoor electronic control P.C. board or
the inverter 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(-)
Does the voltage between each terminal become 5 and 0
VDC repeatedly?
Does the outdoor fan motor rotate smoothly?
Replace the outdoor fan motor.
Replace the outdoor electronic control P.C. board or the inverter
P.C. board.
Yes
Yes
No
(Fixed to either 5 or 0 VDC)
No
No
Yes
I Check of outdoor fan motor
Summary of Contents for MUZ-GB50VA
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