Replace the filter and rack. Run a short hot-water cycle with no detergent to flush out loosened debris.
Sprinkle ½ cup baking soda into the drain hole, then pour 1 cup white vinegar. Let it fizz for 10–15 minutes to break down grease and soap scum. clean drain dishwasher
Look inside the filter housing. Use a toothpick or wire to dislodge any visible debris. Wipe away gunk with a paper towel. Replace the filter and rack