Charger shows E10, RFID cards are not recognized, local authorization fails but basic charging may still work in open mode.

Safety first: RFID circuits are low‑voltage, but always isolate mains before opening the charger.

• 1. Check RFID configuration:
  • Access the charger’s configuration interface.
  • Ensure RFID authorization is enabled and that your card is enrolled.
• 2. Test with another card:
  • Use a known‑working Heidelberg‑compatible RFID card or tag.
  • If no cards are recognized, suspect hardware.
• 3. Inspect RFID module:
  • Open the front cover and locate the RFID reader module behind the fascia.
  • Check the ribbon cable or connector to the main board; reseat if loose.
  • Inspect for cracks or moisture on the reader board.
• 4. Front panel check:
  • Ensure no metal stickers or thick covers are placed over the RFID area, which can block the signal.
• 5. Replace RFID module if necessary:
  • If the reader remains unresponsive, replace the RFID module with the Heidelberg‑specified spare.