Dishwasher trips the household circuit breaker or RCD during or shortly after start.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Do not repeatedly reset the breaker. Unplug the dishwasher and close the water tap.
Step-by-step checks:
- Visual inspection: Remove side and bottom panels and look for signs of water leaks, burnt wiring, or charred components.
- Heater test: Disconnect the heater and test its resistance to earth with a megohmmeter if available. A low insulation value indicates a faulty heater that must be replaced.
- Motor test: Similarly, test the circulation and drain motors for insulation to earth.
- Mains cable: Inspect the power cord for damage where it enters the machine.
Because of the shock risk, if you are not experienced with electrical testing, have a qualified technician diagnose and repair this fault.
Repair Difficulty
Required Part
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