Gillette Exhaust System Leak or Misrouting

Strong exhaust smell or visible exhaust fumes accumulate near the building when the generator runs.

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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

Cracked exhaust flex pipe, Loose exhaust manifold bolts, Damaged muffler, Exhaust outlet too close to air intakes

How to Fix / Troubleshooting

Safety first: Exhaust contains carbon monoxide. Do not allow exhaust to enter occupied spaces. Shut down the generator if exhaust is entering the building.

Steps:

  • Inspect exhaust path: Follow the exhaust from the engine manifold through the flex connector, muffler, and outlet on the Gillette unit. Look for cracks, holes, or loose joints.
  • Tighten and repair: Tighten manifold and flange bolts. Replace damaged flex sections or mufflers.
  • Verify routing: Ensure the exhaust outlet is directed away from windows, doors, and air intakes per installation guidelines. Modify piping if necessary.
  • CO detectors: Install or test carbon monoxide detectors inside the building.
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Repair Difficulty

Medium 3/5

Required Part

Exhaust Flex Pipe
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