How to Fix / Troubleshooting

Note: A single click at start/stop is normal; continuous loud noise is not.

Identify source: Stand near the charger while it operates and localize whether the noise is from the charger body, cable, or panel.
Check mounting: Ensure the charger is firmly mounted to the wall and not rattling. Tighten mounting screws if loose.
Listen to pattern: Rapid repetitive clicking suggests contactor chatter, often due to control or coil issues.
Reduce load: Temporarily lower current in the app to see if noise decreases, which may indicate stressed power electronics.
Service if persistent: A technician should inspect the main contactor and power module, replacing noisy or failing components.

Charger makes loud clicking, buzzing, or humming noises during operation.

Possible Causes