Dishwasher has a bad odor inside, even when not in use.

Steps:

• Deep clean filters and sump: Remove all filters and scrub with hot soapy water. Clean the sump and around the door gasket.
• Run cleaning cycle: Use a dishwasher cleaner or a descaling product on a hot intensive program.
• Check drain hose: Ensure there are no low spots where water can stagnate.
• Leave door ajar: After use, leave the door slightly open to allow ventilation.
• Regular maintenance: Run a hot program at least once a week to reduce biofilm.