Why Does My EV Charger Keep Tripping the GFCI Breaker? Causes and Fixes
Nuisance trips are a common frustration with plug-in chargers. Here are the usual causes — and why many electricians recommend hardwiring.
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Key takeaways
- Double ground-fault protection (breaker + charger) is a common cause.
- Moisture, worn receptacles and loose connections can also trip GFCIs.
- Hardwiring often resolves the issue where code allows.
Why it happens
EV chargers have their own built-in ground-fault protection. When an outlet circuit also has a GFCI breaker (often required by code for receptacles in garages and outdoors), the two devices can interact and trip unexpectedly.
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Other culprits
Water in an outdoor outlet, a worn or low-quality receptacle, loose terminations or a damaged cable can all cause legitimate trips. Never ignore repeated trips — have the circuit inspected.
Fixes
Options include replacing the GFCI breaker with a newer model, upgrading to an industrial-grade receptacle, or hardwiring the charger (which may remove the code requirement for a GFCI receptacle). All of these should be done by a licensed electrician.
Safety note: This article is general information, not professional electrical advice. Working with 240V circuits can cause serious injury or fire. Hire a licensed electrician and follow local codes and permit requirements.
Sources & further reading
Written by
LarryLeoLarryLeo started EV Charging while researching his own next car purchase. He digs into the pros, cons and real cost savings of going electric — using government, standards-body and manufacturer sources — and shares what he finds so other buyers can decide with confidence.
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