Check - Daikin R-410A Service Manual

SiBE39-402A

8. Check

Check No. 8
Check on connector of fan motor (Power supply cable)
(1) Turn off the power supply.
Check No. 9
Check for Fan Motor Connector (Signal Line)
(1) Turn the power supply off.
(2) With the fan motor connector disconnected, measure the resistance between each pin, then
Troubleshooting
Measure the resistance between phases of U,V,W at the motor side connectors (three-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
make sure that the resistance is more than the value mentioned in the following table.
1 White
2 Orange
3 Brown
GND
4 Blue
5
6
7 Red
U
Measure the resistance
V
values between phases
U,V,W.
W
Measurement point
1 - 4
2 - 4
3 - 4
4 - 7
(S2675)

Check

Judgment
1MΩ or more
100kΩ or more
100Ω or more
100kΩ or more
185