How to resolve intermittent charging problems with a Level 2 home charger?

 

Verify Charger and Vehicle Compatibility

 

Compatibility issues can occasionally cause intermittent charging problems. Begin by ensuring that your Level 2 electric vehicle charger and your EV are fully compatible. You can check your EV's owner's manual or speak with dealer support to confirm compatibility parameters such as voltage, amperage, and plug type. Sometimes software updates to the vehicle or charger can also improve compatibility.

 

Inspect and Test Electrical Connections

 

Intermittent charging problems are often due to loose, corroded, or faulty electrical connections. Ensure all wiring connections inside your charger are secure and properly tightened. Turn off the power before inspecting any electrical connections for safety. Look for any signs of overheating, discoloration, or corrosion around terminals and cables. If you're not comfortable inspecting electrical wiring yourself, consider contacting a qualified electrician like those serving the areas of St Louis and Nashville.

 

Inspect for Worn or Damaged Charging Cord & Plug

 

The cable and plug of your Level 2 home charger can develop intermittent issues due to physical abuse, improper storage, weather exposure, or regular use over time. Look for breaks, frays, kinks, or signs of melting and overheating. If the cord or plug is damaged, replace it immediately with genuine manufacturer parts or approved equivalents to prevent fire hazards or malfunctioning.

 

Check for Error Codes and Diagnostics

 

Many Level 2 charging stations offer built-in diagnostics or LED indicators that flash or change colors to indicate problems. Refer to your charging station's manufacturer manual to identify specific error codes or indicator lights. These error messages can provide essential clues toward identifying issues such as ground faults, overheating, connectivity loss, or internal component failures.

 

Reboot or Reset the Charging Station

 

Simple glitches or software hiccups might cause intermittent charging interruptions. Rebooting or resetting your charger can often resolve these minor issues. Unplug your charging station at your breaker panel or power source, wait a brief moment (approximately 1-2 minutes), and restore power. Allow the charger to fully reboot and re-establish a connection with your EV.

 

Ensure Proper Grounding and Circuit Installation

 

Improper grounding or an improperly rated electrical circuit can lead to intermittent problems with your Level 2 charger. Ensure your charger station has been installed on a dedicated circuit with proper grounding as recommended by your manufacturer. An improperly installed charger or faulty ground can lead to a malfunction or safety hazard. Professional electricians in cities such as St Louis and Nashville can quickly diagnose and rectify these installation concerns for you.

 

Address Voltage Variation or Instability Issues

 

Voltage fluctuations or instability from your home’s electrical supply can cause intermittent charging. Use a voltage meter at the outlet or have the voltage and electrical supply checked by an electrician to verify that your home supply consistently meets the recommended standard for your Level 2 charger. If there are fluctuations or evidence pointing toward unstable installation, consider installing voltage regulators or consult your utility provider.

 

Identify and Eliminate External Factors

 

Occasionally, external factors may cause intermittent disruption. For example:

• Extreme weather conditions (rain, snow, excessive humidity, high heat)
• Interference from electronic devices or household equipment near the charger
• Wireless communication issues between a smart charger and home Wi-Fi

Take steps to minimize exposure to harsh conditions, and keep other electrical devices some distance from the charging station and cable.

 

Update Charger and Vehicle Firmware

 

Many Level 2 charger manufacturers and electric vehicle brands periodically release firmware updates to help solve charging issues and improve reliability. Always ensure software and firmware across your charger and vehicle are up-to-date. Check the manufacturer’s website periodically or contact their support line to confirm you have the latest firmware installed.

 

Consult a Licensed Electrician or Technician

 

If you've tried the troubleshooting steps above and your charger continues experiencing intermittent issues, it’s advisable to get assistance from a qualified electrician or EVSE technician. A licensed professional will inspect your system thoroughly, perform detailed diagnostics, and provide a reliable solution tailored to your specific situation. Electricians familiar with local guidelines, like those serving homes in St Louis or Nashville, can also ensure your setup follows code requirements and local standards.