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Troubleshooting by Remote Controller
Si20-701_B
189
NO
NO
NO
Check the fan motor
connector (power supply
wire)
No
continuity on the
fan inverter PCB
fuse
Unable to
rotate the fan
manually with ease
when removing the
connector of the
fan motor
YES
Replace the fan
inverter PCB.
YES
Replace the
corresponding
fan motor.
NO
The
resistance
value between
the power supply
wire terminal of fan
motor and the motor
frame (metal) is
1M
Ω
and
below.
The
resistance
value between
UVW phases of fan
motor is out of balance,
or short circuit
between UVW
phases
YES
Replace the
corresponding
fan motor.
YES
Replace the
corresponding
fan motor.
CHECK 2
A
B