Shark Brushroll / Gearbox Mechanical Damage

Cordless Shark vacuum makes a rattling or grinding noise from the floor nozzle when in 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

Debris caught in brushroll housing, Worn or broken brushroll bearings, Damaged internal gears in floor nozzle, Loose brushroll end caps

How to Fix / Troubleshooting

Safety first: Turn OFF the vacuum and remove the battery before working on the floor nozzle.

  • 1. Remove floor nozzle: Detach the nozzle from the wand and inspect the underside.
  • 2. Clear debris: Remove any stones, hard objects, or large debris trapped near the brushroll or wheels.
  • 3. Remove and inspect brushroll: Unlock and remove the brushroll(s). Check for cracks, missing bristles, or worn end caps. Spin the brushroll by hand; it should rotate smoothly.
  • 4. Listen to gearbox: With the brushroll removed and battery installed, briefly run the nozzle (held safely). If you hear grinding from inside the nozzle, the internal gears or motor are damaged.
  • 5. Replace brushroll or nozzle: If only the brushroll is worn, replace it. If the noise comes from the gearbox or motor, replace the entire floor nozzle assembly.
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Repair Difficulty

Medium 3/5

Required Part

Motorized Floor Nozzle / Brushroll Assembly
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