Haier MRV5-H - B. Compressor Replacement - double compressors unit

144
Fan Motor Code: 0150401919C
Expected readings of control
PWB VDC outputs to DCFM
Expected readings of DC fan
motor circuit board resistances
Multi meter test points for VDC
Multimeter
red probe
Multimeter
black probe
PCB DC volts
Multimeter
black probe
Multimeter
red probe
DCFM PWB
resistance value
SE GND2 5V SE GND2
+5VG ND2 5V +5V GND2
Wring of DC fan motor
1G ND2
Communication signal
public ground
Blue
2S E
Send or receive signal
wire
Gray
3 +5V
5V communication power
supply
Yellow
Expected readings of control
PWB VDC outputs to DCFM
Expected readings of DC fan
motor circuit board resistances
Multi meter test points for VDC
Multimeter
red probe
Multimeter
black probe
PCB DC volts
Multimeter
black probe
Multimeter
red probe
DCFM PWB
resistance value
+280VDC GND 280V +280VDC GND 1.27
Wring of DC fan motor
1 +280VDC
Input DC high voltage
positive
Red
2G ND
Input DC high voltage
negative
White
3
4
4
5
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