Nissan Moisture Ingress / Enclosure Seal Failure

Water or condensation visible inside the transparent parts or vents of the Nissan EV home charger; performance may be erratic.

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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 or improperly installed enclosure gasket, Cable gland not tightened on Nissan wallbox, Mounting on uneven surface causing warping, Installation in location beyond IP rating (direct rain or spray)

How to Fix / Troubleshooting

Safety first: If water is present inside the EVSE, turn OFF the breaker immediately and do not use the charger until it is fully dried and inspected.

  • Dry the unit: Leave the EVSE de-energized with the cover removed (if safe and indoors) to air dry for at least 24–48 hours.
  • Inspect seals: Check the door gasket, cable gland, and any knockouts for gaps or damage. Replace gaskets or glands as needed.
  • Improve mounting: Ensure the EVSE is mounted vertically on a flat surface so that water cannot pool on top or run into the enclosure.
  • Consider shelter: If installed outdoors, add a canopy or shield to reduce direct exposure to rain.

After drying, if corrosion or damage is visible on the control board or terminals, components may need replacement by a technician.

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Repair Difficulty

Medium 3/5

Required Part

Nissan EVSE Enclosure Gasket and Cable Gland
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