E13
Hewalex Compressor Overcurrent / Inverter Protection (for inverter models)

Hewalex pool heater shows E13 and shuts down; may be accompanied by unusual compressor noise.

Advertisements

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Advertisements

Possible Causes

Shorted compressor windings, Blocked or seized compressor, Faulty inverter power module (IPM), Incorrect wiring or short circuit in compressor harness

How to Fix / Troubleshooting

Safety first: High DC voltages are present in inverter units. Only trained technicians should access the power module.

  • Basic external checks: Ensure the unit is not flooded and that there are no visible burn marks or melted wiring around the compressor terminals.
  • Power cycle: Turn off power for 10 minutes, then restart to see if the error was transient.
  • Do not repeatedly reset: Repeated restarts with an overcurrent fault can further damage the compressor or inverter.
  • Professional testing: A technician should measure compressor winding resistance, insulation resistance to earth, and check the inverter module for shorted transistors.
Advertisements

Repair Difficulty

Professional Required 5/5

Required Part

Inverter Power Module
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements