Hoover Main Motor Bearing Wear / Foreign Object in Fan

Cordless vacuum makes loud high-pitched whine or grinding noise during use

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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

Worn motor bearings, Debris ingested into fan, Misaligned motor shaft, Damaged fan blades

How to Fix / Troubleshooting

Safety first: Remove the battery immediately if you hear grinding or burning noises. Do not continue running the motor.

Steps:

  • Check for simple obstructions: Remove the bin and cyclone and inspect the motor inlet for foreign objects. Remove any visible debris.
  • Listen to motor alone: With accessories removed, briefly run the motor (battery installed) and listen. If the noise persists, the motor itself is likely damaged.

Motor bearing or fan damage is not user-repairable on Hoover cordless vacuums. Continued use can lead to complete failure or overheating. Replace the main motor assembly or the entire handheld unit via a service center.

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Repair Difficulty

Professional Required 5/5

Required Part

Hoover Main Suction Motor Assembly
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