Charger Shows an Error

The charger screen displays an error code or warning

The charger is showing an error message on its screen. Some errors mean the charger is broken. Others are temporary and you can fix them. Here is how to tell the difference.

You are at a charger and the screen shows an error message, warning, or fault code. Charging either did not start or stopped unexpectedly.

What to try first

1

Read the error message carefully

Common fixable errors include 'session timed out' (authenticate again and plug in faster), 'communication error' (unplug, wait 30 seconds, replug), and 'authorization failed' (try a different payment method).
2

Try a basic reset

Unplug completely, wait 30 seconds, then reconnect and re-authenticate. Many temporary errors clear themselves after a reset. If the error persists, contact the charger operator using the number displayed on the charger.
3

Check if it is a safety error

Errors mentioning 'ground fault', 'earth leakage', or 'overcurrent' are safety shutdowns. Do not attempt to override these. The charger has detected an electrical problem. Move to a different charger and report the fault.

More scenarios in the app

The EVcourse app walks you through more specific scenarios for this problem with real-world scenarios. Free to try on iOS. Android coming soon.

Download for iOS

Android coming soon.

Frequently asked questions

What does 'communication error' mean on an EV charger?

A communication error means the charger and your car failed to establish a data connection. This happens during the initial handshake when they negotiate charging speed and protocol. Unplug, wait 30 seconds, and try again. If it persists, the charger's communication module may be faulty.

Should I report a broken EV charger?

Yes. Use the charging network's app to report the issue, or call the number displayed on the charger. Reporting helps other drivers avoid the same charger and alerts the operator to send a repair team. Most networks have a 'report a problem' button in their app.