I recently noticed a smell coming from my dishwasher so I decided to find out how to clean it.
I found out that I should be cleaning my dishwasher regularly. Food and grease accumulate in the bottom of your dishwasher and in the hoses and tiny drain holes. Eventually they start to give off an odor because of bacteria that thrives in warm, moist and dark places. A monthly cleaning can keep your dishwasher looking and running like new.
Open the dishwasher door so you can get at its top and sides. Dip a small toothbrush in hot, soapy water, and scrub around the door. Make sure you dig into the grooves of the rubber seal and any other crevices, including the hinges. This step might require gentle scrubbing with abrasive cleanser. Wipe up the resulting grime with a household sponge dipped in hot soapy water.
Before you start cleaning the tub, use a handful of paper towels to grab any debris from the base of the dishwasher. You'll find most of the debris around the drain.