Festool Air Leakage / Poor Sealing

Dust or debris leaks from around the container or hose connection during use

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Possible Causes

Damaged container gasket, Worn hose O-ring, Cracked container or lid, Incorrectly installed filter bag

How to Fix / Troubleshooting

Safety first: Remove the battery and wear a dust mask when working around fine dust.

  • 1. Inspect gaskets: Check the rubber gasket around the container opening and lid. Look for cuts, flattening, or missing sections. Replace if damaged.
  • 2. Check hose seals: Inspect the O-rings on the Festool hose connector. Replace worn or cracked O-rings.
  • 3. Verify bag installation: Ensure the filter bag collar is fully seated on the inlet stub and not folded or twisted.
  • 4. Examine container for cracks: Look for hairline cracks in the plastic container or lid. Replace the container if structural damage is found.
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Repair Difficulty

Easy 2/5

Required Part

Container Gasket
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