Where the Filter Is and Why You Need to Remove It

The filter in your KitchenAid dishwasher sits at the bottom of the tub, usually in the back corner near the spray arm. It traps food particles and debris so they don't recirculate onto your dishes. Over time, the filter collects buildup that can slow water drainage, reduce cleaning power, and create odors — so removing and rinsing it every month or two keeps your dishwasher running properly.

Most KitchenAid models have two parts: a cylindrical fine filter (the main one) and a flat cup-shaped coarse filter underneath it. You'll remove the fine filter first, then the coarse filter if needed. The whole process takes about five minutes and requires no tools.

Key Takeaways

  • The filter is located at the bottom center of the tub, behind or near the lower spray arm, and comes out by twisting counterclockwise.
  • Always empty the dishwasher and let it cool for a few minutes before you remove the filter to avoid hot water and steam burns.
  • Rinse both the fine filter and the coarse filter under running water and use a soft brush or old toothbrush to remove trapped food and mineral deposits.
  • Reinstall the fine filter by twisting it clockwise until it sits flush with the tub floor, then replace the coarse filter underneath if you removed it.

Step 1: Empty the Dishwasher and Let It Cool

Open the door and remove all dishes and racks. This gives you clear access to the bottom of the tub and prevents water from spilling onto dishes when you pull the filter.

If the dishwasher has just finished a cycle, wait three to five minutes before reaching in. The water and interior surfaces will still be hot. You don't need to drain the tub — a small amount of standing water at the bottom is normal and won't hurt you, but it will be warm.

Step 2: Locate and Twist Out the Fine Filter

Look at the bottom center of the tub. You'll see a cylindrical mesh screen — this is the fine filter. It's usually about three inches tall and two inches wide. If your model has a spray arm in the way, you may need to tilt or remove it first (check your manual for your specific model, as removal steps vary).

Grip the filter firmly with both hands and twist it counterclockwise — the same direction you'd turn to loosen a jar lid. It will come free after a quarter to half turn. Lift it straight up and out. If it's stuck, don't force it; instead, gently rock it side to side while twisting.

Step 3: Remove the Coarse Filter (If Your Model Has One)

Once the fine filter is out, look directly underneath. You may see a flat, cup-shaped piece — the coarse filter. Not all KitchenAid models have this part, so don't worry if you don't see one.

If it's there, lift it straight up. It usually sits loosely in a well and doesn't twist. Set it aside with the fine filter.

Step 4: Rinse Both Filters Under Running Water

Hold the fine filter under warm running water and rinse away loose food particles. Use your fingers or a soft brush — an old toothbrush works well — to gently scrub the mesh screen. Pay attention to the underside, where debris often hides. If you see white or gray mineral buildup, soak the filter in white vinegar for 15 to 20 minutes, then brush and rinse again.

Rinse the coarse filter the same way. Because it's flat and has larger holes, food comes off more easily, but check both sides. Never use a dishwasher or hot water above 140°F, as high heat can warp the plastic frame.

Step 5: Reinstall the Filters in Reverse Order

Place the coarse filter back into its well first (if your model has one). It should sit flat and level with no twisting required.

Set the fine filter on top, aligning it with the opening. Twist it clockwise until it's snug — you'll feel slight resistance. Don't over-tighten; a firm quarter-turn past snug is enough. The filter should sit flush with the tub floor with no gaps around the edge.

Common Mistakes to Avoid

The most common error is twisting the filter clockwise when removing it — this tightens it instead. Remember: counterclockwise to remove, clockwise to install. Another mistake is forcing a stuck filter; if it won't budge after gentle rocking, check that you're twisting in the right direction.

Don't use a scrub brush with stiff bristles or abrasive cleaners on the mesh, as these can tear the screen and let food through. If the filter is cracked or has holes, it needs to be replaced — contact KitchenAid or a parts supplier for the correct model number, which you'll find in your manual or on the dishwasher's rating plate inside the door frame.

When to Replace the Filter Instead of Cleaning It

If the mesh is torn, cracked, or has permanent discoloration that doesn't rinse away, the filter has reached the end of its life. A damaged filter won't trap food properly and can allow debris to clog the spray arm or drain.

Filters typically last three to five years with regular cleaning. If you notice your dishes aren't getting clean or water isn't draining well even after you've cleaned the filter, a replacement is usually the next step. KitchenAid sells replacement filters directly, and they cost between $15 and $40 depending on your model.

Frequently Asked Questions

Can I run the dishwasher without the filter?

No. Without the filter, food particles will recirculate, clog the spray arm, and end up back on your dishes. Always reinstall the filter before running a cycle, even if you're still cleaning it.

How often should I clean the filter?

Once a month is a good baseline if you run the dishwasher regularly. If you notice standing water at the bottom of the tub or smell odors, clean it sooner. Heavy use or a household that scrapes dishes less thoroughly may need cleaning every two weeks.

What if the filter won't twist out?

Make sure you're twisting counterclockwise and not pushing down at the same time — pushing can jam it. Try rocking it gently side to side while twisting. If it's still stuck after a minute of gentle effort, stop and consult your manual; some older models have a locking ring that must be released first.

Is it normal to see water at the bottom of the tub?

Yes, a small amount of standing water (usually less than a quarter inch) is normal and part of the design. If water pools higher than that or doesn't drain after a cycle, the filter is likely clogged and needs cleaning.

Can I soak the filter in the dishwasher?

No, hand-wash it under running water or in a sink basin. The dishwasher's heat and spray can damage the plastic frame, and you won't be able to inspect it for damage while it's running.