EV charger maintenance

There is no service interval here comparable to, say, a generator. What fails on home charging equipment is usually the cable and connector — they get driven over, dropped on concrete, and yanked. Inspect the cable jacket and connector pins periodically, and stop using the unit if you find cracked insulation, bent pins or discoloration.

Weather is handled by equipment rating rather than maintenance. AFDC states outdoor installation and use are safe, including charging in the rain, provided the equipment is outdoor-rated. If your unit is mounted outside, confirm it was specified for that — retrofitting weather protection onto an indoor-rated unit is not a fix.

Networked and "smart" units add software to the picture. AFDC notes more advanced Level 2 products include data collection, timers, displays and communications features. Those get firmware updates, and a unit that has lost its network connection can quietly stop honoring your off-peak charging schedule — which costs you money without ever looking like a fault.

The maintenance boundary is simple. Cleaning, visual inspection and app updates are yours. Anything involving the circuit, the breaker, heat at the receptacle, or a burning smell is a licensed electrician's job. Do not open the enclosure.

How to choose

Inspect the cable and connector monthly

Cracked jacket, bent or discolored pins, or a connector that feels loose in the port all mean stop using it.

Store the cable off the ground

Most cable damage comes from being driven over or left in standing water. A wall hook solves it.

Confirm outdoor rating if it lives outside

AFDC says outdoor use is safe with outdoor-rated equipment. That's an equipment specification, not a maintenance task.

Check that scheduled charging is still working

If you're on a time-of-use rate, a smart unit that dropped off the network can silently shift you onto peak pricing.

Heat means stop

A warm plug, a hot receptacle face or any scorching is an immediate electrician call, not a wait-and-see.