Airwell Overheating Electrical Component or Insulation

Burning, electrical, or plastic smell from indoor or outdoor unit during operation.

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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

Loose electrical connection causing arcing, Overheating fan or compressor motor, Burnt PCB component, Foreign object contacting heating element (if present)

How to Fix / Troubleshooting

Safety: Immediately turn off power at the breaker if you smell burning or see smoke. Do not continue operating the unit.

Steps:

  • 1. Visual inspection: After the unit cools, remove indoor and outdoor covers and look for burnt wires, melted insulation, or darkened PCB areas.
  • 2. Check terminals: With power OFF, gently tug on terminal connections at the indoor and outdoor terminal blocks. Tighten any loose screws.
  • 3. Do not ignore: Even if the smell disappears, a damaged component may fail completely later.
  • 4. Professional repair: Electrical burning smells almost always require a technician to replace burnt wiring, connectors, motors, or PCBs and to verify safe operation.
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Repair Difficulty

Professional Required 5/5

Required Part

Wiring Harness / PCB / Motor (depending on source)
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