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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