EV Charger Not Working? A Troubleshooting Guide for South Carolina Homeowners

If your EV charger has stopped working or is behaving unexpectedly, here are the most common issues and what they typically indicate.

Charger Won't Turn On

If your charger shows no lights or indicators, the most likely causes are a tripped circuit breaker, a GFCI outlet that has tripped, or a power outage affecting the circuit. Check your electrical panel for a tripped breaker and reset it. If the breaker trips again immediately, stop and contact a licensed electrician — this indicates a wiring or charger fault.

Charging is Slower Than Expected

Slower-than-normal charging can be caused by a partial circuit issue, a charger operating in a reduced-power mode due to a fault, or a vehicle-side limitation. Check your vehicle's charging settings and confirm the charger is on the expected circuit amperage.

Charger Trips the Circuit Breaker

A charger that repeatedly trips its circuit breaker is a serious electrical issue that requires a licensed electrician. Possible causes include an undersized circuit, a failing charger unit, or a wiring fault. Do not continue to reset and use a charger that is tripping breakers.

Error Codes or Fault Indicators

Most modern EV chargers display error codes or fault indicators when something is wrong. Consult your charger's manual for the specific code meaning. Common faults include ground fault detection, communication errors with the vehicle, and over-temperature conditions.

When to Call a Licensed Electrician

Call a licensed electrician if: the circuit breaker trips repeatedly, you smell burning or see discoloration near the charger or outlet, the charger produces unusual heat, or you are unsure of the cause of the issue. Electrical faults can be dangerous and should not be diagnosed or repaired without proper licensing.