Bosch Moisture Ingress / Enclosure Seal Failure

Water or condensation is visible inside or around the Bosch EV charger housing; unit may trip GFCI or stop charging.

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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 housing gasket, Incorrect outdoor mounting orientation, Conduit entries not sealed, Cracked enclosure from impact

How to Fix / Troubleshooting

Safety first: Turn OFF the breaker immediately if you suspect water inside the charger. Do not touch the unit if there is standing water around it.

  • Visual inspection: Look for cracks, gaps around conduit entries, or missing gaskets on the top or sides of the Bosch enclosure.
  • Drying period: Leave the breaker OFF and allow the unit to dry for at least 24–48 hours in a dry environment. Do not use heat guns directly on the housing.
  • Correct installation issues: Ensure the charger is mounted vertically as specified by Bosch, with drip loops on cables and sealed conduit fittings.
  • Service evaluation: A technician should open the unit, inspect for corrosion on the PCB and terminals, replace any damaged seals, and possibly replace the main board if corrosion is present.
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Repair Difficulty

Hard 4/5

Required Part

Enclosure Gasket / Main Control Board
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