Daikin VRVII Manual page 125

B
CHECK 17
Check fan motor
connector (signal wire)
The
signal wire
short circuits
between Vcc and GND
and between UVW
and GND.
NO
Put the power supply ON
to check the following
LED lamps.
1) HAP lamp on the
compressor PCB
2) HAP lamp on the fan
inverter PCB
HAP
lamp on the
fan inverter PCB
does not blink on the
condition, but the HAP
lamp on the
compressor PCB
is blinking.
NO
CHECK 16
CHECK 17
120
Troubleshooting by Indication on the Remote Controller
YES
YES
Refer to P.378.
Refer to P.379.
Replace the
corresponding
fan motor.
Replace the fan
inverter PCB.
Replace the fan
motor 2.