Empty the dishwasher
Remove the bottom rack and top rack
Clean the filter
Remove and rinse the spray arms
Wipe the door, gasket, and edges
Clear debris from the drain
Place a dishwasher-safe cup of white vinegar on the top rack
Run a hot water cycle
Sprinkle baking soda on the bottom
Run a short hot cycle
Reinstall the racks
Clean the exterior with a damp cloth and mild soap