Troubleshooting
132 Electrical Control System
NO. Color
1 Red
2 ---
3 Black
4 White
5 Yellow
6 Blue
For console:
5
4
6
3
2
1
NO. Color
1 Red
2 ---
3 White
4 Blue
5 Yellow
6 Black
2.Indoor DC
Fan Motor(control chip is in outdoor PCB)
NO. 1 2 3 4 5
Color Orange Grey White Pink Black
Signal Hu Hv Hw Vcc GND
Color Red
Blue Yellow
Signal W V U
1) Release the UVW connector. Measure the resistance of U-V, U-W, V-W. If the resistance is not equal to
each other, the fan motor must has problems and need to be replaced. Otherwise, go to step 2.
2) Power on and when the unit is in standby, measure the voltage of pin4-5 in feedback signal connector. If
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