+16173963696
All Troubleshooting Guides
Easy20-40 minutes

Dishwasher Not Cleaning Dishes: Complete Guide

Fix dishes coming out dirty, spotty, or with food residue still attached with these troubleshooting steps.

Safety Warnings

  • Run the dishwasher empty before inspecting spray arms
  • Let the dishwasher cool if recently run before touching internal components

Tools Needed

Toothpick or small brushWhite vinegarDishwasher cleaner

Step-by-Step Instructions

1

Clean the Filter

Remove the bottom rack and locate the filter assembly at the bottom. Twist to remove and clean under running water. A clogged filter is the #1 cause of poor cleaning.

Most modern dishwashers have manual clean filters that should be cleaned monthly.
2

Inspect and Clean Spray Arms

Remove the spray arms and check for clogs in the small spray holes. Use a toothpick to clear any blocked openings. Rinse thoroughly before reinstalling.

Spray arms should spin freely - check for obstructions that could prevent rotation.
3

Check Water Temperature

Run your kitchen faucet until the water is hot, then start the dishwasher. Water should be at least 120°F for effective cleaning. Test with a thermometer if unsure.

Water that's too hot (above 150°F) can damage dishes and the dishwasher.
4

Evaluate Detergent Usage

Use the correct amount and type of detergent for your water hardness. Too much detergent causes residue; too little won't clean effectively. Consider switching brands if problems persist.

If you have hard water, use a detergent with built-in rinse aid or add separate rinse aid.
5

Load Dishes Properly

Don't overcrowd racks. Make sure dishes don't block spray arms from spinning. Face heavily soiled surfaces toward the spray arms and angle bowls downward.

Tall items in the lower rack can block the upper spray arm from rotating.
6

Run Hot Water Before Starting

Run your kitchen faucet until hot water comes out before starting the dishwasher. This ensures the first fill is hot water, not the cold water sitting in pipes.

This is especially important for homes with water heaters far from the kitchen.
7

Clean the Interior

Run an empty cycle with a dishwasher cleaner or a cup of white vinegar placed in the top rack. This removes grease buildup and mineral deposits that affect performance.

Do this monthly to maintain optimal cleaning performance.

When to Call a Professional

  • Water doesn't appear to be spraying during the wash cycle
  • You hear the pump running but no water spraying
  • Dishes are still dirty after trying all troubleshooting steps
  • The heating element doesn't heat water
  • Error codes are displayed
Call +16173963696

Still Having Issues?

Our experienced technicians have the expertise and parts to fix your appliance right the first time. Same-day service available.

Call +16173963696