Dishwasher repair often comes down to cleaning and a few replaceable parts. Spray arms get clogged with food—poke the holes with a toothpick. The filter at the bottom needs regular cleaning. Drain pump failures cause standing water. Door gaskets wear and leak. Our guides cover Bosch, KitchenAid, GE, and more. Check the drain hose for kinks and ensure the garbage disposal knockout is removed if newly installed. Use a multimeter to test the drain pump. Most repairs take 30–60 minutes with basic tools.