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

Safety first: No electrical work is required; keep power off if removing lower components.

• Deep clean filters and sump: Remove all filters and clean thoroughly. Inspect the sump for trapped food and clean with a brush.
• Run cleaning cycle: Run an empty hot cycle with a dishwasher cleaner or a cup of white vinegar on the top rack, followed by a baking soda rinse.
• Check drain hose routing: Ensure the hose has a proper high loop to prevent backflow from the sink.
• Leave door ajar: After cycles, leave the door slightly open to allow the interior to dry and prevent mold growth.