Hey need a help guys. I have a danfoss inverter that previously the alarm was " heatsink overtemperature " and the inverter incoming diode and output igbt was damage ready. After i troubleshoot the inverter and i found the inverter fan has no supply. And then i found a transistor at the powerboard loss contact. After repair it the fan was work normally. When i give enable to the inverter igbt damage again. Need help. I attach picture of old igbt and the new one i replace.
