E09
Leviton
User Interface / Keypad Fault
Charger shows E09 or a fault pattern indicating stuck button or user interface error; front buttons may be unresponsive.
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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
Stuck or damaged front panel button, Moisture ingress into keypad area, Faulty LED/UI board, Loose ribbon cable between UI and main board
How to Fix / Troubleshooting
Safety first: Turn OFF power at the breaker before removing any front panel components.
Steps:
- 1. Inspect front panel: Check for physical damage, cracks, or signs of water entry around the buttons and LEDs. Gently press each button to see if it returns freely.
- 2. Dry out moisture: If condensation or water is suspected, leave the unit powered OFF and allow it to dry for 24 hours in a dry environment. Do not use heat sources.
- 3. Check ribbon cable (qualified person): With cover removed and power OFF, verify that the ribbon cable from the UI board to the main control board is fully seated and not pinched.
- 4. UI board replacement: If buttons remain unresponsive or E09 persists after drying and reseating cables, the front user interface/LED board may need replacement with the correct Leviton part.
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Repair Difficulty
Medium
3/5
Required Part
Leviton EVSE User Interface Board
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