How to Fix / Troubleshooting

Safety first: Turn off power immediately if water is present inside the wallbox.

Dry the unit: Remove the cover and allow the interior to dry completely in a warm, dry environment. Do not use high heat or open flames.
Inspect seals: Check the perimeter gasket, cable glands, and any knockouts for damage or improper installation. Replace any compromised seals.
Correct mounting: Ensure the wallbox is mounted vertically and according to the installation manual to prevent water pooling.
Check for corrosion: Inspect terminals and the control board for corrosion. Light surface corrosion can sometimes be cleaned; severe corrosion requires component replacement.
Leak test: After reassembly, monitor the unit after rain or washing to ensure no further ingress occurs.

Wallbox enclosure shows signs of water inside (condensation, droplets) or corrosion on terminals.

Possible Causes