If your KitchenAid dishwasher has a control panel with a digital display, the best way to tell when the dishwasher is done is to simply look at the display. The dishwasher will usually have a light that comes on when it is done. If your dishwasher does not have a digital display, you can usually tell when it is done by the sound it makes. Dishwashers typically make a beeping sound when they are finished washing.