Vacuum stops and displays “Err 3”; brush head stops spinning while suction may continue.

Safety first: Turn the vacuum OFF and remove the battery or unplug from charger. Never work on the brush while it is powered.

• Remove the brush head: Detach the motorized floor nozzle from the wand or handheld body.
• Clear the brushroll: Open the brush guard (usually a latch or coin‑slot screws). Remove the brushroll and cut away hair, threads, and debris with scissors, avoiding the bristles.
• Check end caps and bearings: Spin the brushroll by hand. If it feels rough or seized at the ends, clean the end caps and remove any wrapped fibers. Lightly wipe with a dry cloth.
• Inspect the brush motor cavity: Look inside the nozzle for debris around the drive gear or belt (if used). Remove any obstructions.
• Reassemble and test: Reinstall the brushroll and guard, ensuring it is seated correctly. Reattach the nozzle, then power on and test on a hard floor first.
• Replace brush motor or nozzle: If Err 3 returns immediately and the brush does not move, the brush motor or entire motorized nozzle assembly may be faulty and require replacement.