H3
Gorenje
Compressor Overheat Protection
H3 error; unit stops and will not restart until power is cycled; often occurs under heavy load.
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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
Blocked outdoor coil, Failed outdoor fan, Low refrigerant causing poor cooling of compressor, Overcharged system or non-condensables, Faulty compressor thermal protector
How to Fix / Troubleshooting
Safety: Turn off power and allow the outdoor unit to cool before touching.
User checks:
- Clean outdoor coil: Remove dirt and debris from the coil.
- Check fan: Confirm the outdoor fan runs whenever the compressor is on. If not, the fan motor or control is faulty.
- Ventilation: Ensure the unit is not installed in a confined space without adequate ventilation.
Technician tasks:
- Check refrigerant charge and system pressures.
- Verify compressor current and thermal protector operation.
Do not repeatedly reset and run the unit with H3; prolonged overheating can permanently damage the compressor.
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Repair Difficulty
Professional Required
5/5
Required Part
Compressor or Outdoor Fan Motor
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