Westinghouse
Electrical Overheating / Component Failure
Indoor unit blows air but there is a strong chemical or burning smell.
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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
Overheating motor windings, burnt PCB components, melting insulation on wiring, foreign object contacting heating element (if equipped)
How to Fix / Troubleshooting
Safety: Immediately turn off the unit and disconnect power if you smell burning or see smoke.
Steps:
- Do not restart: Leave the unit off until it has been inspected.
- Visual inspection: After cooling, remove covers and look for burnt components, discolored PCB areas, or melted wiring.
- Isolate source: Try to determine if the smell came from the indoor fan motor, PCB, or wiring.
- Replace damaged parts: Any burnt wiring, motors, or boards must be replaced. Do not attempt to repair burnt PCBs.
Professional service: Because of fire risk, have a qualified technician perform a full safety inspection and repair.
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Repair Difficulty
Professional Required
5/5
Required Part
Indoor Control PCB
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