Dishwasher has a bad odor, musty or rotten smell inside the tub.

Safety first: No electrical work is required; keep power off if working near water.

• Clean filters and sump: Remove and scrub filters with hot soapy water. Clean the sump area thoroughly, removing any trapped food.
• Run cleaning cycle: Place a dishwasher cleaner or a cup of white vinegar on the top rack and run the hottest cycle.
• Check drain hose routing: Ensure the drain hose has a high loop under the sink to prevent backflow from the sink or disposal.
• Leave door ajar: After cycles, leave the door slightly open to allow the interior to dry and prevent musty odors.