OpenEVSE
Compatibility Issue with Upstream Protective Device
EVSE causes nuisance tripping of a GFCI or AFCI breaker upstream, even when no vehicle is connected.
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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
Using GFCI breaker with EVSE that has built-in GFCI, Leakage current from filters or surge protectors, Shared neutral or wiring errors in panel, Faulty upstream breaker
How to Fix / Troubleshooting
Safety first: GFCI/AFCI devices are safety-critical. Do not bypass them without proper evaluation.
- Step 1 – Confirm wiring: Have an electrician verify that the EVSE is on a dedicated circuit with no shared neutral and correct line/neutral/ground connections.
- Step 2 – Check breaker type: Many EVSEs with internal GFCI are intended to be used with standard (non-GFCI) breakers. Verify OpenEVSE recommendations and adjust breaker type accordingly.
- Step 3 – Inspect EVSE for leakage: Check for moisture or contamination inside the EVSE that could cause leakage to ground.
- Step 4 – Replace breaker if needed: If wiring and EVSE are confirmed good, the upstream breaker may be overly sensitive or defective; have it replaced by an electrician.
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Repair Difficulty
Medium
3/5
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