Festool Overheating Due to Restricted Cooling

Vacuum body becomes unusually hot to the touch during normal use

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Possible Causes

Blocked cooling vents, Clogged filters causing high load, Operating in high ambient temperature, Failing motor bearings increasing friction

How to Fix / Troubleshooting

Safety first: Switch OFF the vacuum, remove the battery, and allow it to cool before touching hot areas.

  • 1. Clear vents: Inspect all cooling vents and grills. Remove dust buildup with a brush and compressed air.
  • 2. Service filters: Replace the filter bag and clean or replace the main filter to reduce motor load.
  • 3. Check environment: Avoid using the vacuum in confined, unventilated spaces or direct sunlight for extended periods.
  • 4. Listen for bearing noise: If overheating is accompanied by unusual motor noise, the bearings may be failing and the motor should be replaced.
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Repair Difficulty

Easy 2/5

Required Part

Motor Assembly
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