Troubleshooting by Remote Controller
SiUS281117
Service Diagnosis
175
Check for Fan Motor Connector
Check on connector of fan motor (Power supply cable)
Turn OFF the power supply.
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.
Note:
Check on connector of fan motor is not available for below models.
FCQ18~42PAVJU, FAQ18 · 24PVJU
CHECK 3
<FHQ18~42MVJU>
Measuring Points
Judgement
Black - Red
53.5
± 10%
Black - White
31.6
± 10%
<FBQ18~42PVJU>
Measuring Points
Judgement
Black - Red
3.5
± 10%
Black - White
3.5
± 10%
Measuring
Points
Judgement
Black - Red
6.1
± 10%
Black - White
6.1
± 10%
Red
White
Black
1 Yellow
2 Blue
3 Orange
4 Pink
5 Gray
1 Black
2
3 White
4
5 Red
Hu
Hv
Hw
Vcc
GND
FTQ