Vacuum shows E12; unit may vibrate excessively or make grinding noises from the floor head.

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

• Remove brush roll: Detach the floor head and open the brush cover. Pull out the brush roll.
• Inspect bearings and end caps: Check both ends of the brush for melted plastic, cracks, or hair tightly wrapped under the end caps. Remove end caps (if removable) and clean thoroughly.
• Spin test: Rotate the brush roll by hand. It should spin smoothly without wobble. If it feels rough, grinds, or wobbles, the brush roll is likely damaged.
• Check housing: Inspect the bearing seats in the floor head for wear or melted plastic.
• Replace brush roll: Install a new genuine Eufy brush roll assembly if any damage is found. Reassemble the head and test.
• Service head if noise persists: If E12 and vibration continue with a new brush, the floor head motor or internal gears may be damaged and the entire head should be replaced.