Lift the spring-loaded handle at the top of the door to unlatch the KitchenAid and then lower the door.
Pull the lower rack out of the appliance to rest on top of the door.
Hold the handle on the circular screen inside the bottom of the KitchenAid and twist one-quarter turn to the left. Remove the screen carefully to avoid spilling its contents.
Pull out the corrugated filter cylinder inside the compartment that was covered by the screen.
Clean the two parts in the sink with warm water, removing grime with the scrubber brush.
Replace the filter cylinder, set the screen on top, press gently and twist one-quarter turn to the right.
Push the rack back inside the appliance and raise the door to close.