How to Choose the Best How to Clean a Dishwasher Filter (Improve…

Is your dishwasher leaving food residue on dishes or starting to smell? A dirty filter is often the culprit. The dishwasher filter traps food particles to prevent them from redepositing on your dishes. Over time, this filter can become clogged, reducing water flow and cleaning efficiency. Cleaning it regularly is one of the easiest ways to restore performance. In this guide, you'll learn how to clean your dishwasher filter in under 20 minutes, with no special tools needed. Whether you have a modern self-cleaning filter or an older manual-clean filter, the process is straightforward and can save you from costly repairs.

▸What You'll Need

• •Sponge or soft cloth
• •Soft-bristled brush (old toothbrush works well)
• •Baking soda or mild dish soap
• •Warm water
• •Bucket or sink (for rinsing)
• •Rubber gloves (optional but recommended)
• •Towel or paper towels

Estimated Time: 15-20 minutes Difficulty: beginner

▸Step-by-Step Instructions

Step 1: Locate the Filter

Start by removing the bottom rack of your dishwasher. The filter is usually at the bottom of the dishwasher, under the rotating spray arm. Look for a cylindrical or flat cylindrical piece with a mesh screen. Some models have a removable cover that twists off; others have a flat filter that slides out. Refer to your dishwasher manual if you're unsure. Most manufacturers place the filter in a well at the bottom center or rear.

💡 Tips:

• •Check the manual if you can't find it – filter location varies by brand (e.g., Maytag vs. Bosch).
• •If your dishwasher has a 'self-cleaning' filter (hard food disposer), you may not need manual cleaning, but still check for debris.

⚠️ Warnings:

• •Never operate the dishwasher without the filter in place – it can damage the pump.

Step 2: Remove the Filter Assembly

Twist the filter counterclockwise or lift it up, depending on your model. Many dishwashers have a two-part filter: an outer cylindrical mesh and an inner fine mesh. Gently pull them apart. Some filters have a handle; if not, use a cloth to get a better grip. Remove any large food debris that might be sitting on top. Place the filter assembly in a sink or bucket.

💡 Tips:

• •Take a photo before disassembly – it helps when reassembling.
• •If it's stuck, use a gentle rocking motion. Never force it.

Step 3: Rinse Under Running Water

Hold the filter under warm running water to remove loose debris. Use your fingers or a soft brush to dislodge stuck particles. Rinse both the outer and inner parts. Avoid using hard pressure that could damage the mesh. This step removes most of the surface gunk.

💡 Tips:

• •Use a colander to catch small parts that might fall off.
• •If water is not getting through, the filter is heavily clogged – proceed to soaking.

⚠️ Warnings:

• •Do not use a metal brush or abrasive scrubber – it can tear the mesh.

Step 4: Soak in Hot Soapy Water

Fill a bowl or sink with hot water and add a few drops of dish soap or a tablespoon of baking soda. Submerge the filter parts and let them soak for 5-10 minutes. This loosens grease and stubborn residue. For heavy buildup, you can also use a specialized dishwasher cleaner tablet dissolved in water.

💡 Tips:

• •Baking soda helps neutralize odors.
• •If grease is heavy, a degreasing dish soap like Dawn works well.

⚠️ Warnings:

• •Avoid bleach or harsh chemicals – they can damage the filter material.

Step 5: Scrub Gently with a Brush

After soaking, use a soft-bristled brush (like a toothbrush) to scrub the filter's mesh, crevices, and the housing inside the dishwasher where the filter sits. Pay attention to the fine mesh areas where particles get trapped. Scrub both sides. Rinse again under warm water to remove any loosened debris.

💡 Tips:

• •An old toothbrush is perfect for reaching tiny holes.
• •Don't forget the filter housing – if it's dirty, the clean filter will get dirty again quickly.

⚠️ Warnings:

• •Be gentle on the mesh to avoid stretching or tearing.

Step 6: Wipe Down the Filter Area

Before reinstalling, use a damp cloth or sponge to wipe the filter well inside the dishwasher. Remove any debris or slime from the housing. Ensure the area is free of old food particles. This prevents immediate re-clogging.

💡 Tips:

• •Use a small amount of baking soda on a damp cloth to remove odors.
• •Inspect the spray arm holes for clogs at the same time.

Step 7: Reinstall the Filter Assembly

Place the filter parts back in the correct order. Match the alignment tabs or guides. Press down or twist clockwise until it locks into place. Make sure it is secure – a loose filter can allow debris into the pump. Replace the bottom rack.

💡 Tips:

• •If the filter has a handle, ensure it's flush with the bottom.
• •Give the filter a small twist test to confirm it's locked.

⚠️ Warnings:

• •Double-check that all parts are reinstalled – running the dishwasher without the filter can cause serious damage.

Step 8: Run a Cleaning Cycle (Optional but Recommended)

To freshen your dishwasher and remove any residual debris, run an empty cycle on high temperature with a dishwasher cleaner or a cup of white vinegar placed on the top rack. Avoid vinegar if you have a stainless steel tub (it can dull the finish) – use a commercial cleaner instead. This step ensures your dishwasher performs optimally.

💡 Tips:

• •Use a dishwasher cleaner tablet like Finish Dual Action or Glisten.
• •Vinegar is a natural deodorizer but may cause rubber seal damage over time.

⚠️ Warnings:

• •Do not mix vinegar with bleach or other cleaners – toxic fumes can occur.

▸Pro Tips

• •Clean the filter every 1-2 months depending on usage. If you wash heavily soiled dishes daily, clean more often.
• •After cleaning, run your dishwasher with a cup of baking soda on the bottom to neutralize odors.
• •If your dishwasher has a hard food disposer (grinder), you may only need to clean the coarse filter every few months.
• •Always rinse large food scraps off dishes before loading to reduce filter buildup.
• •Check the owner's manual for specific cleaning instructions – some filters are not user-serviceable.
• •When scrubbing, use a non-abrasive sponge to avoid scratching the filter surface.
• •Keep your dishwasher's spray arms clean too – clogged spray arm holes reduce cleaning power.

▸Common Mistakes to Avoid

• •Forgetting to clean the filter housing – it can harbor odors and bacteria.
• •Using harsh chemicals like bleach that can degrade rubber seals and filter material.
• •Twisting or prying the filter too hard, breaking the locking tabs.
• •Reinstalling the filter incorrectly, leading to poor water circulation.
• •Neglecting to run a cleaning cycle after filter cleaning – residue can still be in the machine.

▸Troubleshooting

Problem: Water doesn't drain after cleaning the filter.

Solution: Check that the filter is properly seated. Also inspect the drain hose for clogs. If the problem persists, the pump may be blocked – consult a technician.

Problem: Dishes are still dirty after cleaning filter.

Solution: Clean the spray arms, check water temperature, and ensure you're using the correct detergent. Also consider a dishwasher cleaner to remove internal grease buildup.

Problem: Odor remains after filter cleaning.

Solution: Run a hot cycle with a dishwasher cleaner. If odor persists, clean the door gasket and the drain trap (if accessible). Hard water deposits may require a descaler.

Problem: Filter seems damaged or torn.

Solution: Replace the filter with a genuine manufacturer part. A damaged filter can allow food particles into the pump, leading to expensive repairs.

Finish Dishwasher Cleaner Tablets

Specifically designed to remove grease, limescale, and odors inside the dishwasher, complementing the filter cleaning process.

Best for: Use monthly to maintain cleanliness between filter cleanings.

Price Range: $5 - $10 (per pack of 4-6 tablets)

Glisten Dishwasher Cleaner and Deodorizer

An effective alternative that works well for hard water deposits, leaving the dishwasher fresh and residue-free.

Best for: Use when you notice mineral buildup or after cleaning the filter.

Price Range: $6 - $12

O-Cedar Soft-Bristle Dish Brush

A durable, ergonomic brush with soft bristles that won't damage the filter mesh.

Best for: Ideal for scrubbing filter and other dishwasher parts.

Price Range: $3 - $7

Arm & Hammer Baking Soda

Natural deodorizer and gentle abrasive for soaking and scrubbing the filter.

Best for: Use in soak step and wipe-down to neutralize odors.

Price Range: $1 - $4