Walli
User Interface Power / LED Driver Degradation
Walli charger front LEDs or display are very dim or flicker, but charging still works.
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Possible Causes
Aging or failing LED driver on front panel, Loose front panel connector, Low auxiliary voltage from main board, Water ingress affecting LED PCB
How to Fix / Troubleshooting
Safety first: De‑energize before removing the front cover.
Steps:
- Check for moisture: Inspect the front panel area for condensation or water marks. Dry thoroughly if present.
- Verify connector: Ensure the ribbon cable or connector between the front panel and main board is fully seated.
- Test brightness settings: Some Walli models allow LED brightness adjustment in the app; verify settings.
- Replace front panel: If LEDs remain dim or flicker, replace the Walli front user interface/LED panel.
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Repair Difficulty
Easy
2/5
Required Part
Walli front user interface panel
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