Eureka Motor or Brushroll Bearing Wear

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

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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 main motor bearings, Debris in motor fan, Worn brushroll end bearings, Foreign object in nozzle

How to Fix / Troubleshooting

Safety first: Remove the battery before inspecting moving parts.

Steps to try:

  • Isolate noise source: Run the vacuum with the nozzle removed. If the noise disappears, the issue is in the nozzle. If it remains, the main motor is suspect.
  • Inspect brushroll: Remove the brushroll and spin it by hand. If it feels rough or squeals, replace the brushroll.
  • Check nozzle for debris: Look for small objects (coins, screws) lodged near the brushroll or fan inlet.
  • Motor noise: If the noise clearly comes from the main body and persists with a clean nozzle, the motor bearings or fan are likely damaged. Replace the motor assembly or main body module.
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Repair Difficulty

Hard 4/5

Required Part

Motor Assembly
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