Vacuum vibrates excessively or rattles when the brushroll is engaged.

Safety first: Remove the battery and detach the nozzle.

Steps to try:

• Inspect brushroll: Roll it on a flat surface. If it wobbles or appears bent, replace it.
• Remove debris: Clean any large clumps of hair or fibers from one side of the brushroll that could cause imbalance.
• Check nozzle wheels: Ensure front and rear wheels spin freely and are not broken or missing.
• Tighten screws: Check all screws on the nozzle housing and base plate. Tighten any that are loose.