Villeroy & Boch Keypad Backlight / Low-Voltage Supply Issue

Display works, but backlight is dim or flickering.

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Possible Causes

Aging Villeroy & Boch topside display, weak low-voltage supply from control board, moisture damage to keypad, failing display LEDs.

How to Fix / Troubleshooting

Safety: Turn off power before opening the equipment bay.

  • Check for moisture: Inspect the topside panel and control pack for signs of water ingress, and dry thoroughly.
  • Inspect low-voltage wiring: Ensure all low-voltage connectors on the Villeroy & Boch control board are secure.

If the backlight remains dim or flickers, replacing the topside control panel is usually the most effective solution.

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Repair Difficulty

Easy 2/5

Required Part

Topside Control Panel / Keypad
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