中文
含义
边刷（侧扫刷）运转异常，电机检测到阻力异常或转速不达标。边刷用于清扫墙边角落灰尘，故障通常不影响主吸尘功能。
常见原因
- 边刷上缠绕了大量毛发或细绳，增加旋转阻力
- 边刷安装位置不正确，与底盘摩擦
- 边刷磨损过度，刷毛长度不足影响清扫效果
- 边刷电机轴变形或齿轮磨损
- 边刷固定螺丝松动导致边刷在轴上打滑
自助排查
- 取下边刷，清理缠绕在刷臂和轴上的所有毛发
- 检查边刷是否变形或刷毛严重磨损——必要时更换
- 重新安装边刷，确保安装到位且固定螺丝拧紧
- 用手转动边刷轴感受电机端是否有异常阻力
- 清理后若仍有E04但边刷肉眼可见旋转，可以忽略此提醒
English
Meaning
The side brush rotation is abnormal — the motor detects unusual resistance or the rotation speed is below target. The side brush cleans edges and corners; this fault typically does not affect main suction.
Common Causes
- Side brush heavily tangled with hair or thin string, increasing rotational resistance
- Side brush incorrectly installed, rubbing against the chassis
- Side brush bristles severely worn, too short to sweep effectively
- Deformed side brush motor shaft or worn gears
- Loose side brush retaining screw causing the brush to slip on the shaft
Self-Check Steps
- Remove the side brush and clear all hair wrapped around the brush arms and shaft
- Check the side brush for deformation or severely worn bristles — replace if necessary
- Reinstall the side brush, ensuring it is properly seated and the retaining screw is tightened
- Spin the side brush shaft by hand to feel for abnormal resistance at the motor end
- If E04 persists but the side brush is visibly spinning, this warning can generally be ignored