Hyundai Moisture Ingress / Seal Failure

Water or condensation visible inside the Hyundai wallbox housing.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Damaged enclosure gasket, Incorrect mounting angle allowing water entry, Cable gland not tightened, Cracked housing from impact

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker immediately. Do not operate the charger while moisture is present.

  • Open housing: Carefully remove the front cover and allow the interior to dry completely. Use a dry cloth; do not use heat guns directly on electronics.
  • Inspect seals: Check the perimeter gasket, cable glands, and any knockouts for gaps or cracks.
  • Correct mounting: Ensure the charger is mounted vertically as specified by Hyundai, with the cable entry facing downward.
  • Replace damaged parts: Install new gaskets, glands, or housing components as needed to restore the IP rating.
  • Once fully dry and sealed: Restore power and test operation. If any corrosion is visible on the power or control board, have them replaced.
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Repair Difficulty

Medium 3/5

Required Part

Enclosure Gasket / Cable Glands
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