Does your dishwasher smell bad? The cause is often old food, grease, or water left inside. The machine stays warm and damp, so smells grow quickly. A home-care expert suggests a few simple steps. First, remove the bottom rack and take out the filter. Wash it with warm, soapy water about once a week.
Next, check the small holes in the spray arms. Food can block them and reduce the water flow. Wipe the door and its rubber seal with a damp cloth every week. If the smell stays, run an empty cycle with a dishwasher cleaner. After each wash, leave the door slightly open so the inside can dry. Water left at the bottom may mean a drain problem.