H3
Electrolux
Compressor Overheat Protection
Unit stops and displays H3, often during 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
Dirty condenser coil, Failed outdoor fan motor, Overcharged or undercharged refrigerant, Blocked airflow around outdoor unit, Faulty compressor temperature sensor
How to Fix / Troubleshooting
Safety: Do not touch hot compressor or pipes. Turn off power before cleaning.
User checks:
- Clean outdoor coil: Gently clean the condenser fins with a soft brush or low-pressure water, avoiding bending fins.
- Ensure clearance: Maintain adequate space around the outdoor unit for airflow.
- Check outdoor fan: Observe if the fan runs whenever the compressor is on. If not, the fan motor or capacitor may be faulty.
Technician tasks:
- Check refrigerant charge and system pressures.
- Test compressor thermal sensor and wiring.
- Evaluate compressor condition.
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Repair Difficulty
Professional Required
5/5
Required Part
Outdoor Fan Motor
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