Fondital
Overheating Electrical Component or Dust Burn-off
Boiler emits a burning smell or plastic odour during 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
Dust burning off heat exchanger on first use, Overheating pump or fan motor on Fondital boiler, Loose electrical connection causing hot spot, Foreign object touching flue or casing
How to Fix / Troubleshooting
Safety: If you see smoke or suspect an electrical burning smell, switch off power immediately and do not use the boiler.
User checks:
- New installation: A slight smell on first use can be normal as oils and dust burn off. This should disappear after a few hours.
- Visual check: Without removing covers, look for any object touching the flue or boiler casing (e.g., plastic items, insulation).
- Ventilation: Open windows to ventilate the area.
Technician actions:
- Inspect internal components such as the pump, fan, and PCB for signs of overheating.
- Tighten any loose electrical connections on the terminal block and PCB.
- Check for scorching or melted insulation and replace affected wiring.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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