Immergas
Electrical Short / Earth Leakage
Boiler frequently trips the household electrical circuit breaker or RCD when starting or 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
Water ingress onto electrical components, Shorted pump or fan motor, Damaged wiring insulation, Faulty PCB
How to Fix / Troubleshooting
Safety: Repeated tripping indicates a potentially dangerous fault. Do not repeatedly reset the breaker. Isolate the boiler and call a qualified electrician/engineer.
- Visual inspection (engineer): Check for signs of water leaks onto the PCB, pump, or wiring. Repair leaks first.
- Insulation testing: Perform insulation resistance tests on the pump, fan, and other components to identify earth leakage.
- Component replacement: Replace any component with low insulation resistance or visible damage.
- PCB check: If all peripherals are sound, the PCB may be causing the trip and should be replaced.
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Repair Difficulty
Professional Required
5/5
Required Part
Circulation Pump
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