Bosch User Interface Backlight Degradation

Bosch EV charger’s front LED or display backlight is very dim or flickering, but charging still works.

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Possible Causes

Aging LEDs, Failing backlight driver on UI board, Voltage drop in UI power feed, Moisture-related corrosion

How to Fix / Troubleshooting

Safety first: Turn OFF power before opening any covers.

  • Check visibility in dark: If the display is readable in low light but not in bright sunlight, this may be normal aging.
  • Power reset: Turn OFF the breaker for 1 minute, then ON to clear any transient UI glitches.
  • Service replacement: If the display or LEDs are persistently dim or flickering, the UI board or LED strip should be replaced by a technician.
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Repair Difficulty

Easy 2/5

Required Part

Display / LED User Interface Board
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