Vax
Electrical Short or Earth Fault
Machine trips household circuit breaker or blows fuse when switched on
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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 into motor or wiring, Damaged power cord, Shorted motor windings, Faulty heater element (heated models)
How to Fix / Troubleshooting
Safety first: Do not repeatedly reset the breaker. Unplug the machine and keep it unplugged until the fault is found. Risk of electric shock and fire.
- Check for visible damage: Inspect the power cord, plug, and exterior for cuts, burns, or melted areas. Replace the cord if damaged.
- Dry the machine: If the machine has been stored damp or used in very wet conditions, allow it to dry in a warm, ventilated area for 24–48 hours.
- Inspect internal wiring (for trained persons): Remove covers and look for burnt wires, arcing marks, or water inside the motor or PCB area.
- Test motor and heater: Use a megohmmeter or insulation tester to check for earth leakage on the motor and heater. Replace any component with low insulation resistance.
- Seek professional repair: Due to safety implications, complex electrical faults should be handled by a qualified technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Suction Motor Assembly
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