Day & Night
Overheating Electrical Component
Burning or electrical smell from indoor or outdoor unit
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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
Burning blower or fan motor windings, Overheated wiring at contactor or terminal block, Failing capacitor leaking, Debris on electric heat strips (if present)
How to Fix / Troubleshooting
Safety first: Immediately turn OFF power at breakers and disconnects if you smell burning. Do not continue to operate the system.
- Step 1 – Visual inspection: After components cool, inspect for burnt wires, melted insulation, or discolored terminals.
- Step 2 – Check motors: Smell near the blower and outdoor fan motors. A strong burnt odor indicates motor failure.
- Step 3 – Tighten connections: Tighten any loose electrical connections at contactors and terminal blocks.
- Professional repair: Replace any burnt components and have a technician verify current draw and wiring integrity before restoring operation.
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Repair Difficulty
Hard
4/5
Required Part
Blower Motor or Outdoor Fan Motor
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