Si20-701_B
Troubleshooting by Remote Controller
190
Refer to P.459.
Refer to P.460.
NO
Check the fan motor
connector (signal wire)
Put the power supply ON
to check the following
LED lamps:
HAP lamp above the
compressor inverter PCB
NO
Replace the fan
motor 2.
HAP
lamp for
the PCB does
not blink on the
condition that HAP
lamp for PCB is
blinking.
The
signal wire
short circuits
between Vcc and
GND / UVW
and GND
YES
Replace the fan
inverter PCB.
YES
Replace the
corresponding
fan motor.
CHECK 1
B
CHECK 1
CHECK 2