EV Charger Error
What Does Power Module Offline (Tritium) Mean on an EV Charger?
Updated March 2026
This is general guidance based on Tritium Charging. Actual charger behavior varies by manufacturer and firmware version. Always follow on-screen instructions and contact the charging network if you are unsure. If anything looks or feels unsafe, stop charging and move away from the charger.
One or more power modules in the Tritium charger are offline. The charger may still work but at reduced power output. For example, a 150 kW charger might only deliver 75 kW.
Seeing this on the charger right now?
- Don't unplug while the charger is active. Wait for the screen to update.
- Try stopping and restarting the session from the charging app or RFID card.
- If the error persists, move to a different connector or charger if available.
Read the full explanation below, or scan the charger screen with EVcourse for instant help.
What to do
- Check the charger display for the available power level
- If the reduced power is acceptable, continue charging
- If you need full speed, try a different charger
- Report the fault to the network so a technician can restore full capacity
Technical details
- Error code
- Tritium_PowerModuleOffline
- Category
- Hardware
- Classification
- maintenance
- Source
- For official definitions, visit Tritium Charging. EVcourse is not affiliated with Tritium Charging.
Related charging terms
Understanding these terms can help you troubleshoot this error:
Seeing this error at the charger?
Drivers can verify this specific error by scanning the screen with EVcourse. The app reads any charger display, any language. Free to try on iOS.
Other errors
From Finn, engineer: This error code is part of the ChargeX MREC standard used across public charging networks. Always follow the instructions on the charger display. If the error persists, contact the charging network's support line or try a different charger.
The EVcourse app provides instant troubleshooting and expert explanations at the charger. Scan any station or car screen for step-by-step help, free to start on iOS.
Don't understand the screen? Scan it.
Point your phone at any charger or car screen for instant help. Any brand, any language. Free to try on iOS.
Free to try on iOS. Android coming soon. Join the Android waitlist.