Baxi 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

Overheating indoor or outdoor PCB, Loose electrical connections causing arcing, Failing fan motor or compressor winding insulation, Melted wiring insulation

How to Fix / Troubleshooting

Critical safety: Immediately turn off the Baxi air conditioner at the breaker if you smell burning. Do not continue to operate.

Steps:

  • 1. Visual inspection: After cooling down, remove covers and look for burnt components, discolored wiring, or melted plastic.
  • 2. Tighten terminals: Check terminal blocks at indoor and outdoor units for loose screws and signs of overheating.

Action: Any burnt PCB, motor, or wiring must be replaced. This work should be done by a qualified technician due to fire and shock risk.

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Repair Difficulty

Professional Required 5/5

Required Part

Outdoor Main PCB
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