How to Clean a Dishwasher Filter (Simple Step-by-Step Guide)

Learn how to clean your dishwasher filter properly with this easy step-by-step guide. Remove odors, improve cleaning, and keep your dishwasher running like new.

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2/23/20262 min read

clear glass mugs on white metal rack
clear glass mugs on white metal rack

Why cleaning the dishwasher filter is important

Your dishwasher filter traps food particles, grease, and debris. Over time it gets clogged. When that happens, you may notice:

  • Dishes coming out dirty

  • Bad smell inside the dishwasher

  • Water draining slowly

  • White residue on glasses

  • Strange noises during washing

Cleaning the filter once every 2–4 weeks keeps your dishwasher working efficiently.

Step 1. Turn off the dishwasher

For safety:

  • Switch off the dishwasher

  • Let it cool if it was recently running

No need to disconnect water for this job.

Step 2. Remove the bottom rack

  • Slide the lower rack completely out

  • Set it aside

You will now see the filter area at the bottom.

Step 3. Locate and remove the filter

Most dishwashers have:

  • A cylindrical twist-lock filter

  • Sometimes a flat mesh filter underneath

To remove:

  1. Turn the cylindrical filter counter-clockwise

  2. Lift it straight out

  3. Remove the flat filter if present

(Check your model manual if unsure.)

Step 4. Wash the filter thoroughly

  • Rinse under warm running water

  • Use dish soap and a soft brush or old toothbrush

  • Remove grease and stuck food

⚠ Do NOT use wire brushes or harsh scrubbers.
They can damage the mesh.

If grease buildup is heavy, soak the filter in warm soapy water for 10 minutes.

Step 5. Clean the filter housing area

Before reinstalling:

  • Wipe the hole where the filter sits

  • Remove any loose food or debris

  • Use a damp cloth or paper towel

Never pour large amounts of water into the open drain.

Step 6. Reinstall the filter properly

  • Put the flat filter back first (if your model has one)

  • Insert the cylindrical filter

  • Turn clockwise until it locks firmly

Make sure it sits tight. A loose filter can damage the pump.

Step 7. Run a quick rinse cycle

Run the dishwasher empty for one short cycle to:

  • Flush remaining debris

  • Remove any loosened grease

  • Check everything drains normally

How often should you clean the dishwasher filter?

  • Large family / heavy cooking → every 2 weeks

  • Average household → once a month

  • Light use → every 6 weeks

If you rinse dishes poorly before loading, clean it more often.

Extra pro tips most people don’t know

✔ Run a hot cycle with vinegar once a month
✔ Avoid overloading with greasy pans
✔ Scrape large food chunks before loading
✔ Check the spray arms while the filter is out

These small habits dramatically extend dishwasher life.

Cleaning the dishwasher filter takes less than 10 minutes but can completely transform washing performance. Regular cleaning prevents odors, improves drainage, and keeps your dishes sparkling every time.

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