Mini
Short Circuit or Inrush Overcurrent
Mini EV Home Charger causes the supply breaker to trip (overcurrent or short-circuit) when starting a charge
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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
Shorted power module, Damaged tethered cable with conductors shorted, Incorrect breaker rating or curve, Loose strands of wire at input terminal touching adjacent terminal
How to Fix / Troubleshooting
Warning: Do not repeatedly reset a breaker that trips instantly; this indicates a serious fault.
- Visual cable check: Inspect the tethered cable for severe damage. If any copper is visible or the cable is crushed, stop using the charger.
- Check breaker rating (electrician): Confirm the breaker size and type match Mini’s installation requirements. Replace with correct type if undersized.
- Internal inspection (technician): With power OFF, open the charger and inspect input and output terminals for stray wire strands, loose screws, or signs of arcing.
- Component testing: A technician should test the power module and contactor for internal shorts and replace faulty parts.
Do not operate the charger until the cause of tripping is identified and corrected.
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Repair Difficulty
Professional Required
5/5
Required Part
Mini EV Charger Power Module Assembly
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