How to Fix / Troubleshooting

Safety first: Water inside an energized charger is extremely dangerous. Turn off power immediately.

Steps:

De‑energize: Switch off the dedicated breaker and verify the charger is off.
Open housing: Remove the front cover and carefully inspect for water, corrosion, or rust on terminals and the main board.
Dry thoroughly: Gently dry the interior with absorbent cloths and allow the unit to air dry for at least 24 hours. Do not use high heat or hair dryers.
Inspect seals: Check the perimeter gasket, cable gland, and any knockouts for damage or gaps. Replace the Walli front cover gasket or cable gland if compromised.
Assess damage: If corrosion is present on the main board or terminals, replace the affected components (main control board, terminal block) before re‑energizing.
Prevent recurrence: Ensure the Walli is mounted vertically and that all screws are tightened to compress the gasket evenly.

Walli charger leaks water or shows condensation inside the transparent areas of the housing.

Possible Causes