LG ATNH09GRLE2 Svc Manual page 80

Step
1 Turn the power off (wait until the outdoor device LED is turned off)
2 Remove compressor wires.
3 Measure the voltage as shown in the figure.
4 Check the voltage for being in the range of 0.4~0.6V.
5 Judge IPM Pins for short.
IPM Check Point
2/2.5kW
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Flow of Inspection
IPM Check Point
P U V W
- 80 -
4. Trouble Shooting
N N N
u v w
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