Midea MSV1-18HRDN1-MQ0W - 10.4.6 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0)

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Index 1:
1.Indoor AC fan motor
Measure the resistance value of each winding by using the tester.
For the definite value of the resistance, refer to page61 and page64.
2.Indoor or outdoor DC fan motor(control chip is inside fan motor)
Measure the resistance value of each winding by using the tester. If any resistance value is zero, the
fan motor must have problems and need to be replaced.
NO.
Color
1
Red
2
---
3
Black
4
White
5
Yellow
6
Blue
Index2:
1: Indoor AC fan motor
Power on and set the unit running in fan mode at high fan speed. After running for 15 seconds,
measure the voltage of pin1 and pin2. If the value of the voltage is less than 100V(208~240V power
supply)or 50V(115V power supply), the PCB must have problems and need to be replaced.