Samsung Electronics 162
Troubleshooting
4-4-14 Case study – Related error with IPM
Error code E500 (INV 1) / E400 (INV 2)
Contents IGBT module over heated error
Error result
Possibility
1) Loose screw connection between IGBT module and heat sink
2) No thermal grease on Heat sink
3) Defect of related electronic component
Treatment
1) Check status of screws on IGBT module
2) Plastering thermal grease to IGBT module or heat sink
3) Change INV PBA
Heat sink IGBT(IPM) module Inv. PBA
Good No Good
4-4 Case study for trouble shoots (cont.)
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