Festool Motor Bearing or Fan Impeller Damage

Vacuum makes a loud, high-pitched whine or grinding noise during operation.

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.

Possible Causes

Worn motor bearings, Debris lodged in the fan impeller, Cracked or unbalanced impeller, Misaligned motor mount.

Safety first: Switch OFF the vacuum, remove the battery, and wait for the motor to stop completely before opening.

1. Check for foreign objects: Remove filters and inspect the fan inlet for screws, nails, or chips. Carefully remove any debris.
2. Spin motor by hand: If accessible, gently rotate the motor/fan. Roughness, grinding, or side play indicates bearing wear.
3. Inspect impeller: Look for cracks, missing blades, or rubbing marks on the fan housing. A damaged impeller must be replaced.
4. Replace motor assembly: If bearings are noisy or the impeller is damaged, replace the complete motor assembly. This is typically a service center repair due to balancing and sealing requirements.

Hard 4/5

Motor Assembly

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