Dishwasher has a bad smell inside, even when empty.

Safety first: Turn off the appliance before cleaning internal parts.

• Deep-clean filters and sump: Remove all filters and scrub them with hot soapy water. Wipe the sump area thoroughly.
• Clean door seals: Wipe around the door gasket and bottom edge of the door where residue can collect.
• Run a cleaning cycle: Use a dishwasher cleaner or a cup of dishwasher-safe descaler on an empty, hottest cycle.
• Use regular hot cycles: Periodically run a high-temperature program to reduce grease and bacteria build-up.