EV Charger Maintenance Basics
The good news: Level 2 EV chargers require almost no maintenance. They're designed to be installed and forgotten. That said, basic care extends their lifespan. Keep the charger clean and free of debris. Check the cable periodically for damage (cracks, cuts, exposed wires). Ensure the connector is clean and dry before plugging in. For outdoor chargers, inspect the mounting hardware annually for rust or looseness. Most chargers have LED indicators that show status — familiarize yourself with what normal looks like. A quick visual inspection once a month is all that's needed.
- •Keep charger clean and free of debris
- •Check cable for damage monthly
- •Ensure connector is clean and dry before use
- •Inspect outdoor mounting hardware annually
- •Know your charger's LED status indicators
- •Most chargers require zero regular maintenance
Common Issue: Charger Won't Start
If your charger won't start charging, check these basics first: Is the breaker on? (Check your electrical panel). Is the charger properly plugged in? (For plug-in models). Is your EV properly connected? (Some cars require the charging session to be initiated from the car). Is there a Wi-Fi issue? (Some chargers require initial Wi-Fi setup). Check the charger's LED status — most have error codes. For Tesla Wall Connector: check the Tesla app. For ChargePoint: check the ChargePoint app. If basic troubleshooting doesn't work, contact the charger manufacturer's support line first (they handle most issues remotely).
- •Check breaker is on
- •Verify proper connection to car
- •Check charger LED status indicator
- •Try resetting the charger (turn breaker off/on)
- •Check manufacturer's app for error messages
- •Contact manufacturer support before calling electrician
Common Issue: Charging Stops Mid-Session
If charging stops unexpectedly, it's often due to: GFCI trip (check if breaker tripped), Wi-Fi connectivity issues (smart chargers may pause if connection is lost), car-side issue (some EVs stop charging if battery management system detects an issue), or power outage. Check your car's charging history — most EVs log charging interruptions. Check the charger's app for error messages. If the issue persists, try a different charging location to isolate whether it's the car or the charger.
- •Check for GFCI/breaker trip
- •Check Wi-Fi connectivity (smart chargers)
- •Review car's charging history for errors
- •Try charging at a different location to isolate issue
- •Reset charger (breaker off/on)
- •Contact manufacturer if issue persists
Common Issue: Slow Charging Speed
If charging seems slower than expected, check: Is the charger set to the correct amperage? (Some chargers are adjustable). Is your car's onboard charger limiting speed? (Most EVs cap at 11.5 kW AC). Is the charger sharing power with another EV? (Some chargers have load-sharing features). Is it cold? (Batteries charge slower in cold weather). Check your car's charging settings — some EVs have 'charge limit' or 'scheduled charging' that may affect speed. If speed is still slow, the charger may need adjustment by a qualified electrician.
- •Verify charger amperage setting
- •Check car's onboard charger limit (typically 11.5 kW max)
- •Check for load-sharing with other chargers
- •Cold weather slows charging (normal)
- •Review car's charging settings and limits
- •Contact ChargeWizards if charger needs amperage adjustment
When to Call ChargeWizards
Call ChargeWizards for: breaker trips repeatedly (indicates electrical issue), visible damage to charger or wiring, burning smell or unusual heat from charger, water intrusion into charger, charger mounting is loose or damaged, or you need to relocate or remove a charger. For warranty issues (charger malfunction, app connectivity problems), contact the manufacturer first — they'll often replace the unit under warranty. For electrical issues, safety concerns, or installation-related problems, ChargeWizards is here to help.
- •Breaker trips repeatedly
- •Visible damage to charger or wiring
- •Burning smell or unusual heat
- •Water intrusion into charger
- •Loose or damaged mounting
- •Relocation or removal needed