
Level 2 Electric Vehicle (EV) Charger Maintenance
Level 2 electric vehicle (EV) charger maintenance involves several key practices to ensure safety, reliability, and optimal charging performance over time. Maintenance requirements generally include routine inspections, cleaning, and professional checks, as well as attending to any damage or performance issues as they arise.
Routine Maintenance Tasks for Level 2 Chargers
- Clean the charger and cable regularly: Wipe down the charger unit, cord, and connectors weekly or as needed to remove dirt, dust, and moisture which can degrade components.
- Securely store cables: Coil the charging cable properly after use to avoid physical damage, kinks, or exposed wiring.
- Inspect for external damage: Check the charger, cable, and plug for visible signs such as cracks, corrosion, or frayed wires. Any such damage warrants prompt professional inspection and repair.
- Check electrical connections: Ensure tight, corrosion-free connections at the outlet, hardwired junction, charger unit, and vehicle plug. Periodically unplugging and reinserting the charger cord helps maintain a clean, tight contact.
- Inspect outlet and wiring: Look for loose, damaged, or overheated components in the electrical outlet or wiring leading to the charger. If breakers trip frequently, the electrical panel and wiring should be inspected and potentially upgraded to support the charger load.
- Keep software updated: For smart Level 2 chargers, regularly update firmware or software to improve performance and address any bugs.
- Calibrate as needed: Some advanced chargers may require occasional calibration to ensure charging accuracy; follow manufacturer instructions for this.
When to Seek Professional Maintenance
- Performance issues: If charging times increase beyond the typical 4–10 hours for a full charge, professional diagnostics are advised to detect underlying electrical or charger faults.
- After extreme weather: Exposure to severe weather (storms, floods, extreme heat/cold) can damage outdoor chargers. A qualified technician should inspect the charger even if damage is not visible.
- Low voltage or electrical abnormalities: Level 2 chargers operate at 240 volts. A noticeable drop in voltage or electrical irregularities should prompt a professional electrical system check.
- Visible exposed wiring: Exposed internal wiring presents safety hazards and requires immediate replacement or repair by a certified specialist.
Periodic Professional Checks
- Annual inspections by a certified EV charger specialist are recommended for comprehensive electrical component checks, ensuring compliance with safety standards and maintaining warranty validity.
- Maintenance plans help prevent unexpected breakdowns and costly repairs, sustaining uptime and charger reliability.
In summary, Level 2 EV chargers require consistent routine care including cleaning, visual inspections, proper cable handling, and connection checks. Professional inspections and upkeep on electrical infrastructure are also necessary to address wear, performance changes, or damage, thereby maintaining safe and efficient operation for years.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/what-are-the-maintenance-requirements-for-level-2-chargers/
