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Service manual
11.3.2.4 Outdoor unit fan speed has been out of control (E8)
Index 1:
1. Outdoor DC fan motor (control chip is inside 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 have
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
46
Signal
Voltage
Vs/Vm
140V~380V
---
---
GND
0V
Vcc
13.5-16.5V
Vsp
0~6.5V
FG
15V
DM16-01.01.11-01en
Multi DC inverter R410A. Outdoor unit
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