H5
Electrolux IPM / Inverter Module Protection

Unit displays H5 and stops operation

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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.

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Possible Causes

Overcurrent in inverter module, Shorted IPM, Poor heat dissipation on outdoor PCB, Loose power connections, Faulty compressor

How to Fix / Troubleshooting

Safety: Inverter circuits carry dangerous voltages even after power is removed. Only trained personnel should service the inverter board.

Basic checks:

  • Power reset: Turn off the breaker for 10–15 minutes, then restore power.
  • Ventilation: Ensure the outdoor unit is not obstructed and that the PCB compartment is not clogged with dust.
  • Inspect wiring: With power off, check for loose or burnt connections at the outdoor PCB and compressor terminals.

Further diagnosis (IPM testing, compressor insulation testing) must be done by a qualified technician. In most cases, the outdoor PCB or compressor will need replacement.

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Repair Difficulty

Professional Required 5/5

Required Part

Outdoor Inverter PCB (IPM Module)
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