Cause:

1. Foreign objects in dust bin to hit Dust Cup wall.

2. There is too much dust inside the Dust Cup.

3. The Vacuum Cleaner runs at an environment full of static electricity.

Solutions:

1. Please empty Dust CupHow to empty the Dust Cup [V500]

2. Please empty Dust CupHow to empty the Dust Cup [V500]

3. It's normal that there may be much static electricity inthe air in winter and dry regions.

Model: V500