Takagi
Overheating Electrical Component or Wiring
Takagi water heater emits a burning or electrical smell 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
Loose electrical connection causing arcing, Failing fan motor or pump motor, Overheated PCB component, Debris on burner causing scorching smell
How to Fix / Troubleshooting
Safety first: Immediately turn OFF power and gas. Do not continue operating the heater until the source is identified.
Steps:
- 1. Visual inspection: After cooling, remove the cover and look for discolored, melted, or burnt wiring and components on the PCB, fan, or pump.
- 2. Tighten connections: Gently check that all plug-in connectors are fully seated. Do not attempt board-level repairs.
- 3. Clean burner area: If the smell is more like burning dust, clean dust and lint from the burner and combustion chamber with a vacuum and soft brush.
- 4. Professional repair: Any signs of burnt wiring or components require evaluation and replacement by a qualified technician.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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