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EV Charger Tripping or Not Charging?
Tesla Wall Connectors and Level 2 chargers on 240V circuits
Plug or outlet hot, melted or discolored? Turn off the breaker and call.
Quick answer
An EV charger that trips its breaker, shows a ground-fault error or won't charge is usually reacting to an undersized or overloaded circuit, a heat-damaged 240V outlet, a loose connection or a ground fault. Xlectrical's licensed electricians (Florida License EC 13014052) answer 24/7 from Sunrise and serve all of Broward County. The emergency service call is $299 and is applied toward the repair.
Fire, smoke or someone shocked? Call 911 first. Whole street dark? Report it to FPL at 1-800-4OUTAGE.
Do this right now
- Stop charging and turn off the charger's breaker if the plug, outlet or cable is hot or discolored.
- Note the error or fault code shown on the charger or in its app.
- Check that the charger's breaker isn't tripped, and that the charging amps in the app match the circuit size.
- Unplug the car, wait a minute, restore power and try once more.
- If it trips again or the outlet shows heat damage, leave it off and call 754-289-8993.
Why EV chargers trip or stop charging
- Circuit size: EV charging is a continuous load, so the circuit must be sized at 125% of the charging current — a 32-amp charger needs a 40-amp circuit, a 48-amp charger a 60-amp circuit. A mismatch trips the breaker or overheats the wiring.
- Heat-damaged 240V outlets: plug-in chargers on NEMA 14-50 outlets can overheat a low-grade outlet or a loose terminal. Melted outlets and plugs are one of the most common EV charging failures.
- Ground faults: GFCI breakers and the charger's own protection trip on moisture in an outdoor outlet or box, a damaged cable or a wiring fault.
- Panel overload: charging while the AC, pool pump and dryer run can overload the service if no load management is in place.
- Charger or car faults: firmware, communication or internal faults that the app or the manufacturer can diagnose.
What we do
- Check the outlet, plug and connections for heat damage and replace with an industrial-grade outlet or hardwire the charger.
- Verify the breaker, wire size and charger amperage setting match.
- Test for ground faults and moisture, especially on outdoor and carport installs.
- Run a load calculation and recommend load management or a panel upgrade only if it's needed.
Plug-in or hardwired?
For daily charging, we usually recommend hardwiring a Level 2 charger or using an industrial-grade 240V outlet. It removes the most common failure point. Learn more about EV charger installation and costs in our EV charger cost guide.
What it costs
The emergency service call is $299, applied toward the repair when you approve it. Outlet replacement and circuit corrections are usually quick; a new circuit or load management is quoted in writing.
Not sure what you're dealing with? See all common electrical emergencies or call our 24/7 emergency electricians.
FAQ
EV Charger Tripping or Not Charging: FAQ
Why does my EV charger keep tripping the breaker?
Usually the circuit isn't sized for continuous charging, the outlet or connections are overheating, or there's a ground fault. Lowering the charging amps can be a temporary fix while the circuit is checked.
My 240V outlet melted. Is that common?
It happens when a standard-grade NEMA 14-50 outlet or a loose terminal carries EV charging current for hours. Replace it with an industrial-grade outlet or hardwire the charger.
Do you work on Tesla Wall Connectors?
Yes. We install and troubleshoot Tesla Wall Connectors and universal Level 2 chargers, including the circuit, breaker and connections.
Can my panel handle an EV charger?
A load calculation tells you. If capacity is tight, load management can often avoid a panel upgrade.
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754-289-8993