Water or condensation visible inside the Audi wallbox housing or behind the front cover.

Safety first: If water is present inside the electrical compartment, switch off power at the breaker immediately and do not use the charger.

• Dry the unit: With power off, carefully open the housing and allow it to dry completely. Use absorbent cloths and gentle airflow; avoid direct heat on components.
• Inspect seals and glands: Check the perimeter gasket, cable glands, and any knockouts for damage or gaps. Replace damaged gaskets and properly tighten glands.
• Check mounting location: Ensure the charger is mounted vertically and not in a location where water can pool or be sprayed directly (e.g., under a roof edge without gutter).
• Corrosion inspection: Look for corrosion on terminals and PCBs. If corrosion is present, affected components (terminal blocks, boards) should be replaced.

After correcting sealing issues and replacing any corroded parts, perform insulation and functional tests before returning the charger to service.