Baxi Overheating Electrical Component

Burning or electrical smell from the Baxi water heater casing during or after operation.

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.

Possible Causes

Overheating pump or fan motor, Loose electrical connection causing arcing, Failing PCB component, Insulation touching hot surfaces

Safety: Turn off power immediately. Do not continue to operate the heater until the source is identified.

Steps:

Visual inspection: After cooling, remove the cover and look for discoloured wiring, melted insulation, or burnt PCB areas.
Check cable routing: Ensure no cables are resting on the heat exchanger or flue components.

Professional: A technician should test motors, tighten terminals, and replace any damaged components.

Hard 4/5

Fan Motor or Control PCB

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