Chaffoteaux
Overheating Electrical Component
Smell of burning plastic or electrical smell from the water heater.
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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
Loose electrical connections, Overheated PCB, Fan motor overheating, Melted connector on gas valve
How to Fix / Troubleshooting
Safety: Switch off power immediately and do not operate the heater until inspected.
- Visual inspection: After cooling, remove the front cover and inspect the PCB, connectors, and wiring for discoloration or melted insulation.
- Tighten terminals: Tighten any loose screw terminals at the mains input block.
- Replace damaged parts: Replace any burnt connectors, wiring, or PCB. If the fan motor shows signs of overheating, replace it.
- Professional check: Have a technician verify current draw and ensure no underlying fault is causing overheating.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB and Wiring Harness
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