Vacuum leaves debris on carpets; brushroll spins but pickup is poor.

Safety first: Turn OFF the vacuum and remove the battery before working on the brush head.

• Remove brushroll: Detach the motorized nozzle and open the brush guard. Take out the brushroll.
• Inspect bristles: Compare bristle length to the edges or to a new brush if available. If bristles are flattened or very short, they will not agitate carpet effectively.
• Clean housing: Remove any packed lint or hair from the nozzle cavity and suction channel.
• Check bearings: Spin the brushroll by hand. If it wobbles or feels rough, the end bearings may be worn.
• Replace brushroll: Install a new genuine iRobot brushroll designed for your cordless nozzle. Ensure it is seated correctly and the guard is fully latched.