American Standard
Overheating Components or Dust Burn-Off
Strong burning or electrical smell when furnace runs
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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 accumulation on heat exchanger and elements, Overheating blower motor, Electrical short or melting insulation, Foreign object in supply duct near American Standard furnace
How to Fix / Troubleshooting
Safety: If you smell burning plastic or see smoke, turn off power immediately and call a professional.
- Initial operation:
- A mild dusty smell is normal for the first few cycles of the season and should dissipate.
- Inspect blower and wiring:
- Look for discolored wires or burnt insulation.
- Check blower motor for excessive heat or noise.
- Any persistent burning or electrical odor should be investigated by a licensed technician.
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Repair Difficulty
Hard
4/5
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