Festool Overfill Protection / Airflow Restriction

Vacuum does not start when container is very full; starts again after emptying

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Possible Causes

Filter bag overfilled and blocking inlet, Fine dust clogging filter surface, Container overfilled beyond max mark

How to Fix / Troubleshooting

Safety first: Remove the battery before opening the container.

  • 1. Replace filter bag: Remove the overfilled Festool filter bag and install a new one. Do not reuse overfilled bags.
  • 2. Clean main filter: Tap out or replace the main filter to restore airflow.
  • 3. Observe fill level: In future use, empty or replace the bag before it reaches the maximum fill line indicated by Festool.
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Repair Difficulty

Very Easy 1/5

Required Part

Filter Bag
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