Baxi Electrical Short or Earth Leakage

Baxi water heater trips the household RCD or circuit breaker when it attempts to start.

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

Water ingress into electrical components, Shorted fan or pump motor, Damaged wiring harness, Faulty PCB causing earth leakage

Safety: Repeated tripping indicates a serious electrical fault. Do not repeatedly reset the breaker.

Steps:

Inspect for leaks: Check inside the heater for any signs of water dripping onto electrical parts.
Drying: If a minor leak has caused moisture, fix the leak and allow components to dry fully before re-energising.

Professional: An electrician or technician must insulation-test the circuits, identify the faulty component, and replace it.

Professional Required 5/5

Wiring Harness or Motor (Fan/Pump)

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