Roca
Overheating Electrical Components
Furnace produces a burning smell or plastic odor when running
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
Dust burning off heat exchanger, Overheating pump motor, Loose electrical connection causing arcing, Fan motor overheating
How to Fix / Troubleshooting
Safety first: If you notice a strong burning smell, turn off power to the furnace immediately.
- Initial run after long off period: A mild dust-burning smell for a short time can be normal. If it persists or is strong, investigate.
- Inspect wiring: After cooling, remove the front panel and check for discolored or melted wires and connectors, especially near the pump, fan, and PCB.
- Check fan and pump: Ensure both rotate freely and are not obstructed by insulation or wiring.
- Do not ignore: If you see any signs of burning or melted plastic, do not restart the furnace. Call a technician to replace damaged components.
Warning: Electrical overheating can lead to fire. Always address burning smells promptly.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Circulation Pump or Fan Motor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements