Dishwasher repair how-to

How to Replace a Dishwasher Filter

Direct answer: To replace a dishwasher filter, turn off power, remove the lower rack, unlock and lift out the old filter, clean the filter area, install the new filter in the same position, and run a short rinse cycle to confirm proper draining.

A worn, torn, or badly clogged dishwasher filter can leave food debris in the tub and slow draining. This is usually a simple homeowner repair if the filter is easy to access from inside the tub. Work gently so you do not damage the sump area or spray arm parts.

Before you start: Match the filter size, thickness, and airflow direction before ordering. Stop if the repair becomes unsafe or unclear.

Last reviewed: 2026-03-17

Step-by-step fix

Step 1: Shut off power and empty the dishwasher

  1. Turn the dishwasher off at its control panel.
  2. Switch off power at the breaker or unplug the unit if the plug is accessible.
  3. Open the door and pull out the lower rack so you can reach the bottom of the tub.
  4. Remove dishes, utensils, and any loose debris from the bottom area.
  5. If there is standing water, soak up enough water with towels or a sponge so you can see the filter clearly.

If it works: The dishwasher is off, the lower tub is accessible, and the filter area is visible.

If it doesn’t: If you cannot safely disconnect power or the tub is full of dirty water that quickly returns, stop and address the drain issue before replacing the filter.

Stop if:
  • You cannot confirm power is off.
  • There is broken glass or sharp metal you cannot remove safely.
  • Water keeps rising into the tub while you work.

Step 2: Locate the filter and check how it is secured

  1. Look at the center or rear area of the dishwasher floor for a round, flat, or cylindrical filter assembly.
  2. Use a flashlight to find arrows, lock icons, tabs, or screws that show how the filter is held in place.
  3. If a lower spray arm blocks access, check whether it lifts off or is held by a simple cap or fastener.
  4. Take a quick photo before removal so you can match the new filter position later.

If it works: You know where the filter sits and whether it twists, lifts out, or is held by a cover or screws.

If it doesn’t: If the filter is hidden under parts you cannot remove easily or the layout is unclear, pause and look up the correct access method for your dishwasher before forcing anything.

Stop if:
  • The filter housing looks cracked or loose.
  • A fastener is seized and will not loosen with light pressure.
  • You would need to disassemble wiring or motor parts to continue.

Step 3: Remove the old dishwasher filter

  1. Put on gloves before reaching into the filter area.
  2. Turn the filter counterclockwise if it uses a twist lock, or release tabs or screws if present.
  3. Lift the filter straight up and out slowly so trapped debris does not fall deeper into the sump.
  4. If the filter has a separate screen and cup section, keep the pieces together so you can compare them with the replacement.
  5. Check the old filter for tears, warped plastic, broken tabs, or heavy buildup.

If it works: The old filter is out without damaging the surrounding sump or spray arm parts.

If it doesn’t: If the filter will not release, reinstall it loosely and confirm the lock direction or hidden fasteners before trying again.

Stop if:
  • The filter feels stuck hard enough that it may crack the housing.
  • A tab breaks off inside the sump area.
  • You find damage to the pump cover or filter mount.

Step 4: Clean the filter opening and compare the new part

  1. Wipe out sludge, food particles, labels, and other debris from the filter opening and nearby tub floor.
  2. Use a soft brush to clean around the seat where the new filter will rest.
  3. Do not push debris down into the sump opening.
  4. Compare the new filter to the old one for overall shape, diameter, height, tabs, and locking points.
  5. If your replacement includes multiple pieces, arrange them in the same order as the old assembly.

If it works: The mounting area is clean and the new filter matches the old one closely enough to install.

If it doesn’t: If the new filter does not line up with the old one or the locking tabs differ, do not force it. Recheck fit before ordering another part.

Stop if:
  • The replacement is a different size or shape.
  • The new filter will not sit flat in the opening.
  • The filter seat is cracked or badly worn.

Step 5: Install and lock the new filter

  1. Set the new filter into the opening in the same orientation as the old one.
  2. Press it down gently until it sits evenly in its seat.
  3. Turn it to the lock position or secure any tabs or screws without overtightening.
  4. Reinstall any spray arm or cover you removed earlier.
  5. Slide the lower rack back into place.

If it works: The new filter is seated flat, locked in place, and any removed parts are reinstalled securely.

If it doesn’t: If the filter rocks, lifts, or will not lock, remove it and check for debris under the seal or a mismatch in the replacement part.

Stop if:
  • You have to force the filter to make it fit.
  • The spray arm rubs or cannot spin freely after reassembly.
  • A screw will not start by hand and may cross-thread.

Step 6: Run a short test and check draining

  1. Restore power to the dishwasher.
  2. Run a short rinse or quick cycle with the dishwasher empty.
  3. Listen for normal water movement and watch for leaks around the door and under the unit if accessible.
  4. At the end of the cycle, open the door and check that the bottom of the tub is mostly clear of debris and not holding unusual standing water.
  5. If needed, wipe away any remaining loose particles after the test.

If it works: The dishwasher runs normally, the filter stays in place, and the tub drains as expected.

If it doesn’t: If water still drains slowly or debris returns right away, there may be a separate drain, pump, or spray issue beyond the filter.

Stop if:
  • You hear grinding, loud rattling, or repeated drain failure.
  • Water leaks from underneath the dishwasher.
  • The dishwasher shows an error or stops mid-cycle.

Replacement Parts

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FAQ

Do I always need to replace a dishwasher filter instead of cleaning it?

No. Many dishwasher filters can be removed and cleaned. Replace the filter if it is torn, warped, cracked, missing pieces, or will not lock in place securely.

Where is the dishwasher filter located?

It is usually at the bottom of the tub, often near the center under the lower spray arm area. Some are round twist-lock filters, while others sit under a small cover or screen.

What if my dishwasher still does not drain after replacing the filter?

A clogged drain hose, blocked air gap, pump problem, or debris deeper in the sump may still be causing the issue. If a short cycle leaves standing water, further diagnosis may be needed.

Can I run the dishwasher without the filter installed?

It is best not to. The filter helps keep food debris out of the pump and spray system. Running without it can lead to poor cleaning or damage from debris.

How often should I check the dishwasher filter?

Check it regularly if you notice slow draining, gritty residue, or food left on dishes. In many homes, a quick inspection and cleaning every month or two helps prevent buildup.