SMEG Odor / Biofilm Buildup

Dishwasher has a persistent bad smell, even when empty; odor transfers to dishes.

Possible Causes

Food residue in sump and filters, Grease buildup in hoses, Standing water in low spots, Infrequent high-temperature cycles

Safety first: Turn off power before deep cleaning internal areas.

Thoroughly clean filters: Remove and scrub all filters with hot soapy water.
Clean door seals and edges: Wipe the door gasket and inner door edges where residue can accumulate.
Run cleaning cycle: Run an empty hot cycle with a dishwasher cleaner or a cup of dishwasher-safe descaler placed on the top rack.
Improve usage habits: Scrape plates before loading and run regular hot cycles to prevent buildup.

Very Easy 1/5