High-pitched squealing noise from the brush area when cleaning.

Safety: Unplug the machine before removing covers.

• 1. Remove brush and belt cover: Take off the nozzle, then remove the brush roll and belt cover.
• 2. Clean and inspect: Remove hair and fibers from the brush ends and belt path. Check the brush end caps for smooth rotation; replace the brush roll if they are seized.
• 3. Replace belt: Install a new brush drive belt if the old one is glazed, cracked, or stretched.
• 4. Check pulleys: Inspect the motor or drive pulley for rough spots or damage. Replace if worn.
• 5. Reassemble and test: Reinstall components and test. Persistent squeal usually indicates the need for a new brush roll.