Schumacher Nuisance Tripping Due to Leakage or Inrush

Charger intermittently trips the home’s GFCI breaker or AFCI breaker, but the charger itself shows no error.

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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

Combined GFCI protection in panel and charger, Leakage current near trip threshold, High inrush current on startup, Shared neutral or improper wiring

How to Fix / Troubleshooting

Safety first: Frequent breaker tripping indicates a potential wiring or leakage issue. Do not repeatedly reset without investigation.

  • Check breaker type: For EV chargers with built-in GFCI/CCID, the branch circuit should typically use a standard (non-GFCI) breaker unless local code requires otherwise. Consult an electrician.
  • Verify dedicated circuit: Ensure the Schumacher charger is on its own dedicated circuit with no other loads.
  • Inspect wiring: Have an electrician verify that no neutrals are shared and that hot and neutral/ground are correctly routed through the breaker.
  • If tripping continues on a correctly wired circuit: The charger may have excessive leakage or inrush. A technician should test the internal GFCI/CCID module and power module.
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Repair Difficulty

Hard 4/5

Required Part

Internal GFCI/CCID Module
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