Daikin VRV-WIII RWEYQ72PTJU Service Manual page 170

Troubleshooting by Indication on the Remote Controller
1. Check on connector of fan motor (Power supply cable)
Note:
2. Measurement of signal wire connector.
3. Check on connector of fan motor is not available for below models.
162
Turn OFF the power supply.
Measure the resistance between phases of U, V, W at the motor side connectors (3-core wire)
to check that the values are balanced and there is no short circuiting, while connector or relay
connector is disconnected.
Red
White
Black
Remove the X2A connector and measure the resistance between GND and VCC, HW, HV, or
HU terminals of the motor connector (with 5 conductors).
FXMQ40PVET
Measuring Points
Black-Red
Black-White
Connector signal wire use (X2A)
5 Gray
GND
4 Pink
Vcc
3 Orange Hw
2 Blue
H
V
1 Yellow
H
U
SiUS30-1301
Judgement
3.5Ω ±10%
3.5Ω ±10%
Service Diagnosis