Hoonved
Earth Leakage / Insulation Fault
Dishwasher trips the RCD (residual current device) or GFCI when heating or washing.
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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
Heating element insulation breakdown, Water ingress into electrical components, Damaged wiring harness touching chassis, Faulty wash or drain pump with leakage to earth
How to Fix / Troubleshooting
Safety first: Do not repeatedly reset an RCD that trips. Disconnect the machine and have insulation tests performed by a qualified technician.
- Visual inspection: Look for signs of water leaks onto electrical parts, especially around heaters and pumps.
- Check wiring: Inspect harnesses for damaged insulation or points where wires rub against metal.
- Insulation testing: Use a megohmmeter (by a professional) to test heaters and motors for leakage to earth. Replace any component with low insulation resistance.
- Fix leaks: Repair any water leaks that may be causing moisture ingress into electrical areas.
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Repair Difficulty
Professional Required
5/5
Required Part
Tank Heating Element
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