Generac Water Intrusion into Enclosure

Water or moisture is found inside the generator enclosure, with signs of rust or corrosion on components.

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Possible Causes

Damaged or missing door seals, improper roof or lid sealing, blocked drain holes, or incorrect installation slope.

How to Fix / Troubleshooting

Safety: Disconnect the battery and AC power before working inside a wet generator. Allow components to dry before energizing.

  • Dry the interior: Use towels and a fan to dry water from the base pan and components. Do not use open flame heaters.
  • Inspect seals: Check door gaskets and lid seals for cracks or gaps. Replace worn seals with OEM Generac gasket kits.
  • Clear drains: Ensure base pan drain holes are open so water can escape.
  • Correct grading: Verify that the concrete pad slopes slightly away from the generator and that roof runoff does not fall directly on the unit.
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Repair Difficulty

Easy 2/5

Required Part

Enclosure Door Gasket
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