Samsung AM072BXV Series Service Manual page 175

System air conditioner outdoor unit
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Troubleshooting
4-4 Case study for trouble shoots (cont.)
4-4-12 Case study – E461/361 & E464/364 & E466/366 (cont.)
▪ Diagnosis 4 : Check compressor defect with Tester
1. Power Off.
2. Wait more than 15 minutes after the Power Off as in case of IPM failure, discharge mode may not work properly.
3. Prepare the digital multi tester.
Resistance test
Normal Value
Resistance value of (U↔V,V↔W,W↔U) on compressor
less than 2Ω
Resistance value between the body of compressor and chassis
Samsung Electronics
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