Chevrolet
Nuisance Tripping / Overcurrent or Ground Fault on Circuit
Charger trips the house breaker or GFCI outlet as soon as charging starts.
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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
Undersized or long branch circuit wiring, Shared circuit with other loads, Ground fault in charger cable, Incompatible GFCI breaker with built-in charger GFCI
How to Fix / Troubleshooting
Safety first: Repeated breaker trips indicate a potential hazard. Do not keep resetting without investigation.
- Step 1 – Confirm dedicated circuit: Ensure the Chevrolet home charger is on its own dedicated breaker with no other loads.
- Step 2 – Check breaker type: If using a GFCI breaker with a charger that already has internal GFCI/CCID, consult the installation manual; a standard breaker may be recommended instead.
- Step 3 – Inspect cable and charger: Look for visible damage, moisture, or burning on the cable and charger enclosure.
- Step 4 – Lower current setting: Temporarily reduce the charger’s maximum current and see if the breaker still trips. If not, the circuit may be undersized or too long.
- Step 5 – Electrician evaluation: Have an electrician verify wire gauge, breaker size, and insulation resistance of the circuit and charger.
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Repair Difficulty
Medium
3/5
Required Part
Branch Circuit Breaker and Wiring
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