Open the dirt collection container by pressing the release button on the container.
Remove all dirt from the container.
Unlock the coarse dirt filter (a lock is shown on the container).
Remove the coarse dirt filter and clean it.
Remove the HEPA filter.
Clean it by lightly tapping or brushing.
Operation is only recommended with this filter to avoid engine damage.
Clean the suction pipe in the tank.
Clean the tank completely from the inside.
If there is still dirt in the suction pipe, try to remove it.
(As soon as grains or other contaminants enter the motor, they may be damaged).