Cummins Moisture Ingress / Corrosion

Corrosion and rust forming inside generator enclosure

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Possible Causes

Leaking enclosure seals, Poor drainage around pad, High humidity and condensation, Exhaust leak into enclosure

How to Fix / Troubleshooting

Safety first: Disable automatic start. Be cautious of slippery surfaces and sharp rusted edges.

  • Inspect seals: Check enclosure door gaskets and cable entry points for gaps. Replace damaged seals.
  • Drainage: Ensure the concrete pad slopes away from the generator and that water does not pool around the base.
  • Ventilation: Improve airflow around the enclosure to reduce condensation. In severe cases, consider a small enclosure heater approved for use.
  • Rust treatment: Clean and treat rusted areas with appropriate rust converter and repaint with corrosion-resistant paint.
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Repair Difficulty

Easy 2/5

Required Part

Enclosure Door Gasket
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