Enphase User Interface / LED Driver Degradation

Charger display or status LEDs are dim, flickering, or unreadable, but charging still works.

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Possible Causes

Aging or failed LED backlight, Loose UI board connector, Faulty low-voltage power supply to UI, Water or dust ingress on display area

How to Fix / Troubleshooting

Note: This is primarily a usability issue; charging safety is usually unaffected.

  • Check for moisture or dirt: Wipe the display window with a dry, soft cloth. Do not use solvents.
  • Power cycle: Turn OFF the breaker for 1 minute, then ON, to reset the UI controller.
  • Use app as workaround: Monitor charging via the Enphase app while scheduling repair.
  • Service: A technician can open the unit, reseat the UI ribbon cable, and replace the LED/display board if necessary.
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Repair Difficulty

Easy 2/5

Required Part

Enphase EV Charger User Interface / LED Board
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