E15
JuiceBox RFID Reader Communication Fault

Charger shows E15 RFID reader error (for RFID-enabled models); cannot start sessions with RFID cards.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Disconnected RFID reader cable, Failed RFID antenna or reader module, Damaged front panel around RFID area, Firmware not recognizing RFID module

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker before opening the enclosure.

  • Test with multiple cards: Try more than one authorized RFID card or fob to rule out a single bad card.
  • Check app settings: Ensure RFID authorization is enabled in the JuiceBox app and that the cards are properly registered.
  • Inspect RFID module connection (power OFF): Open the unit and locate the small RFID reader board behind the front panel. Verify its cable is firmly connected to the main control or communication board.
  • Physical damage check: Look for cracks or impact damage on the front panel where the RFID target is located. If damaged, replace the front panel / RFID reader assembly.
  • Module replacement: If connections are good and E15 persists, replace the RFID reader module as a unit.
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Repair Difficulty

Medium 3/5

Required Part

RFID Reader Module
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