Vacuum runs for a second and then stops when the brush head touches the floor.

Safety first: Remove the battery pack and detach the floor nozzle.

• 1. Test brush off the floor: With the nozzle attached but lifted off the floor, run the vacuum. If it runs normally, the issue occurs only under load.
• 2. Clean and inspect brush roll: Remove the brush roll, clean thoroughly, and ensure it spins freely in the housing.
• 3. Check end caps: Remove end caps (if removable) and clean any hair or debris inside. Lubrication is generally not required; if used, apply only a tiny amount of light machine oil away from plastic.
• 4. Replace nozzle: If the brush still stalls when contacting the floor, the brush motor or gearbox is weak and the motorized nozzle assembly should be replaced.