Daikin R71FUV1 Service Manual page 243

Si20-701_B
Troubleshooting
Caution
Turn power OFF.
Is the
fan motor
connector
connected to PCB for
fan inverter
correctly?
Check connector of fan
motor.
(∗1)
The
resistance
of fan motor read
wire connector pins
between Vcc-UVW
and GND-UVW
balanced?
Note:
∗1: Disconnect connector and measure the following
resistance.
3 Orange
1 Yellow
236
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
NO
YES
NO
YES
5 Gray
4 Pink
2 Blue
Troubleshooting by Remote Controller
GND
Vcc
Measure the
resistance
between Vcc-
W
UVW and
GND-UVW.
V
U
Connect
correctly.
Replace the fan
motor.
Replace the fan
inverter PCB.