Indoor Or Outdoor Dc Fan Motor(Control Chip Is In Fan Motor) - Kaisai KFU-09HRDN1-QRC8W Service Manual

2.

Indoor or Outdoor DC Fan Motor(control chip is in fan motor)

Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector.
If the value of the voltage is not in the range showing in below table, the PCB must has problems and need to be
replaced.
DC motor voltage input and output
NO. Color
1 Red
2 ---
3 Black
4 White
5 Yellow
6 Blue
Signal Voltage
Vs/Vm 280V~380V
---
GND
Vcc 14-17.5V
Vsp 0~5.6V
FG 14-17.5V
---
0V
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