No, it's a simple thing for the most part. Take out the racks and scrub them, and the walls of the inside of the washer. There is usually a screen on the bottom where the water drains (scrub under the screen and the screen itself), and the water shooting arm thingy (yes, that's a technical term, sorry) unless you can get under it well to clean it. Scrub every inch if you can. Then drain or use a sponge to reomve the water. Then put everything back in and run the diswasher (sans dishes) with a cup or two of white vinagar.

That should do it.

Got ya. I thought you were referring to the drain section or something.