Midea Overheating Electrical Component or Insulation

Burning, electrical, or plastic 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

Burnt PCB component, Overheated wiring or loose terminal, Motor winding failure, Foreign object melting on coil or heater

How to Fix / Troubleshooting

Safety first: Immediately turn off the unit and switch off the breaker. Do not continue to operate the system if a burning smell is present.

Steps (visual only):

  • 1. Inspect for visible damage: After cooling, open the indoor and/or outdoor covers and look for burnt components, melted plastic, or discolored wiring.
  • 2. Do not attempt repair: Do not bypass fuses or relays, and do not tape over burnt wires.

When to call a technician: A burning smell indicates a potentially serious fault. A qualified technician must locate and replace the damaged components and verify safe operation.

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Repair Difficulty

Professional Required 5/5

Required Part

Indoor Main PCB
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