Unpleasant smell coming from the dishwasher, even when not in use.

Safety first: Disconnect power if you will be reaching into the sump.

Steps:

• Clean filters thoroughly: Remove and scrub filters with hot soapy water.
• Clean sump: Remove visible debris from the sump area. Wipe around the door seal and corners.
• Run cleaning cycle: Use a dishwasher cleaner or a cup of white vinegar on the top rack and run the hottest program.
• Improve usage habits: Rinse heavy food residues from dishes, and run a hot cycle at least once a week.

When to call a technician: Persistent odors despite cleaning may indicate stagnant water in hoses or hidden areas that may require professional disassembly and cleaning.