E16
Leviton Wireless Communication Module Fault

Charger indicates E16 or a Wi‑Fi/Bluetooth module error; smart connectivity is unavailable, but basic charging may still work.

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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

Failed Wi‑Fi/Bluetooth module, Loose antenna or module connector, Firmware incompatibility, RF interference or shielding from metal enclosure

How to Fix / Troubleshooting

Safety first: Turn OFF power at the breaker before opening the enclosure to access the communication module.

Steps:

  • 1. Reboot and re-pair: Power cycle the EVSE and attempt to reconnect via the Leviton app. Forget and re-add the charger if necessary.
  • 2. Check signal strength: Ensure the charger is within range of your Wi‑Fi router and not heavily shielded by metal walls or doors.
  • 3. Inspect module (qualified person): With cover removed and power OFF, verify the wireless module is firmly seated on its header and that any antenna leads are connected.
  • 4. Firmware update: If possible, update firmware via USB or other supported method to ensure compatibility with the wireless module.
  • 5. Module replacement: If E16 persists and connectivity cannot be restored, the wireless module may need replacement with the correct Leviton part.
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Repair Difficulty

Medium 3/5

Required Part

Leviton EVSE Wi‑Fi/Bluetooth Module
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