Where the filter is and why it matters

The KitchenAid dishwasher filter sits at the bottom of the tub, usually under a removable cylindrical cage or basket. Food particles, grease, and mineral deposits collect there over time. If you do not clean it regularly, water cannot drain properly, dishes come out dirty, and the motor works harder than it should.

Most KitchenAid models have two filter parts: an upper filter (a flat mesh screen) and a lower filter (a cylindrical cage). Both need attention. Cleaning the filter takes about five minutes and should happen once a month, or more often if you run the dishwasher daily or wash heavily soiled dishes.

Key Takeaways

  • The filter sits at the bottom center of the tub and comes out by twisting counterclockwise or lifting straight up, depending on your model.
  • Rinse both the upper mesh screen and lower cylindrical cage under running water, using a soft brush or old toothbrush to loosen trapped food.
  • Soak the filter in hot water with a few drops of dish soap for stubborn buildup, then scrub gently to avoid damaging the mesh.
  • Check the filter well (the hole where the filter sits) for debris, and wipe it clean with a damp cloth before replacing the filter.
  • A clean filter prevents standing water, foul odors, and poor wash results, and extends the life of your dishwasher's pump.

How to remove the filter from your KitchenAid

Empty the dishwasher completely and open the door. Look at the bottom center of the tub. You will see either a cylindrical cage with a handle or a flat screen sitting in a well. The removal method depends on your model year and design.

For models with a twisting cage: grip the handle firmly and turn it counterclockwise (left) until it stops. Lift it straight out. For models with a lift-out design: straightforward pull the cage or screen straight up. If it feels stuck, do not force it—run your finger around the edge to break any seal from dried food or mineral deposits, then try again.

Set the filter on a clean towel. Do not soak it in the dishwasher yet; you will need to inspect the filter well first.

Cleaning the filter well and surrounding area

Before you clean the filter itself, look into the hole where it sat. Food particles and grease often settle in the well and the spray arm opening below it. Use a damp cloth or paper towel to wipe out any visible debris. If you see a lot of buildup, dampen a cloth with white vinegar and wipe again.

Check the spray arm holes (the small openings around the bottom of the tub) for clogs. If water is not flowing evenly during the wash cycle, a blocked spray arm is often the culprit. Use a toothpick or small wire to clear any holes that look blocked, then rinse the area with water.

Rinsing and scrubbing the filter parts

Hold the filter under warm running water and rinse both sides thoroughly. Use your fingers to rub away loose food. For the cylindrical cage, run water through the inside and outside. For the flat upper screen, rinse both the top and bottom surfaces.

If food or mineral deposits are stuck on, use a soft-bristled brush—an old toothbrush works well—and scrub gently in a circular motion. Do not use a wire brush or abrasive scouring pad, as these can damage the mesh and create holes that let food through. Pay special attention to the corners and seams where debris collects.

Soaking for stubborn buildup

If rinsing and brushing do not remove all the buildup, soak the filter. Fill a bowl or sink with hot water and add a few drops of dish soap or a tablespoon of white vinegar. Place the filter in the water and let it sit for 15 to 30 minutes. The heat and soap will loosen dried food and grease.

After soaking, scrub gently with the soft brush again. Rinse thoroughly under running water until no soap or vinegar smell remains. Shake off excess water and inspect the filter in good light. You should see through the mesh clearly, with no visible food particles or cloudy mineral film.

Putting the filter back and testing

Make sure the filter well is completely dry. For twist-in models, align the filter cage with the opening and push it down, then turn clockwise (right) until snug. Do not over-tighten; you should be able to remove it by hand next time. For lift-in models, straightforward lower the filter into the well until it sits flat.

Run a short rinse cycle with no dishes to check that water drains properly and the spray arm rotates freely. If water pools at the bottom or the spray arm does not move, the filter may not be seated correctly, or debris may still be blocking the well. Remove the filter and check again.

How often to clean and signs you have waited too long

Clean the filter monthly as part of routine maintenance. If you wash heavily soiled pots, baking dishes, or greasy cookware regularly, clean it every two weeks. If you notice standing water at the bottom of the tub after a cycle, a foul smell when you open the door, or dishes that come out with food residue, the filter needs when ready attention.

Mineral buildup from hard water can also clog the filter faster. If your water is hard, soak the filter in white vinegar once a month to dissolve mineral deposits. This keeps the mesh clear and improves water flow through the entire wash system.

Frequently Asked Questions

Can I put the filter in the dishwasher to clean it?

No. The high heat and spray force of the wash cycle can damage the mesh and warp the cage. Always hand-wash the filter under running water with a soft brush. The only exception is if your KitchenAid manual specifically states the filter is dishwasher-safe, which is rare.

What if the filter is cracked or has holes in the mesh?

A damaged filter will let food through to the pump and drain, causing clogs and poor wash results. Contact KitchenAid or a parts supplier to order a replacement filter for your model number. Installation is the same as removal—it takes less than a minute.

Why does my dishwasher still smell bad after cleaning the filter?

Odor can come from the drain line, spray arm, or filter well itself. After cleaning the filter, run a cycle with a cup of white vinegar in the bottom of the empty tub. This cleans the entire interior and kills odor-causing bacteria. If the smell persists, the drain hose may need clearing by a technician.

How do I know which KitchenAid model I have to find the right filter?

Look inside the door frame or on the side wall of the tub for a model number sticker. It usually starts with KDFE, KDTE, or KUDS. Write down the full number and search it on the KitchenAid website or call their customer service line. They can confirm your filter type and send you the manual if you need it.