Stiebel Eltron
Overheating Electrical Component
Water heater emits a burning smell or visible smoke during operation.
Advertisements
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.
Advertisements
Possible Causes
Loose high-current connection overheating, Failing heating element terminal, Burnt relay or PCB trace, Foreign material inside casing contacting hot parts
How to Fix / Troubleshooting
Safety: Immediately turn off power at the breaker and do not use the heater until inspected. Risk of fire.
- Visual inspection: After the unit cools, remove the cover and look for burnt insulation, discolored terminals, or charred PCB areas.
- Tighten and repair: Tighten any loose terminals and replace any melted connectors or wiring with high-temperature rated parts.
- Clean interior: Remove any foreign objects, dust buildup, or insects that may have entered the casing.
- Replace damaged components: If a relay, terminal block, or section of the control board is burnt, replace the affected component or entire board.
- Professional evaluation: Due to fire risk, have a qualified technician verify all repairs and test the unit under load before returning it to service.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
Terminal Block / Main Control Board / Heating Element Terminals
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements