Troubleshooting
4-52 Samsung Electronics
14. OLP overheating and compressor stop : E463
- Check the opening of the sub valve.
- Check the amount of the cooling water.
- Check the OLP sensor.
15. Current sensor error : E468
- Check the EEPROM data.
- Check the PCB operation.
16. IPM (IGBT Module) or PFCM temperature sensor error : E474
IPM overheat error for outdoor unit inverter compressor : E500
- Check whether IPM is correctly assembled on the heatproof plate.
- Check whether the inlet is blockage.
- If there is a defect, replace the IPM.
17. Mismatching indoor unit and outdoor unit error : E563
AC026/035/052RNJDKG :
- AC***RNJDKG models are not available to install DPM. Do not install DPM.
The other models :
- Check the indoor unit cycle option code.
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