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RED Flashing

RED Flashing LED — Authentication failed

Zaptec · Pro

What does RED Flashing mean?

The charging station indicates that user authentication has failed. This means your RFID tag, charging card, or user profile is not recognized or lacks the necessary access to charge.

Common Causes

  • RFID tag or charging card is not connected to your user profile
  • User profile does not have access rights to charge on this station or installation in the Zaptec Portal

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check in the Zaptec Portal that your RFID tag or charging card is linked to your user profile.

  2. 2

    Verify in the Zaptec Portal that your user account has the correct access to charge on the specific charging station or installation.

  3. 3

    Try using a different, authorized RFID tag or charging card if one is available.

Browse all codes in this manual (22)
Verified technical data. Last updated: April 2026

Related Faults

Active Error Codes in AppError codes displayed in Zaptec appApp Error FieldZaptec App displays a red field with active error codesBLUEBLUE LED — Communicating with vehicle, but charging not yet initiated
Source: Zaptec Pro
Open Manual (Page 18)Search more codes in this manual