How to Clean a Whirlpool Dishwasher Filter

The filter in a Whirlpool dishwasher plays a crucial role in keeping dishes clean and preventing food debris from recirculating. Regular cleaning helps maintain optimal performance, reduce odors, and extend the life of the appliance. This guide provides a clear, step-by-step method to remove, clean, and reinstall the filter using common tools and dedicated cleaning accessories.

Quick Answer

Remove the lower rack, locate the filter assembly, and lift or twist to disengage. Rinse under warm water, scrub with a soft brush, dry, and reinstall. For stubborn grime, soak the filter in warm, soapy water or use a dedicated cleaning tool kit designed for dishwasher filters.

What You’ll Need

Whirlpool dishwasher filter cleaning brush
dishwasher filter cleaning kit brush
dishwasher filter brush set
Whirlpool dishwasher filter maintenance tool
dishwasher tub filter cleaning tool kit

	Dishwasher Cleaner Brush Kit – 6PCS Deep Cleaning Tools with Pick, Scraper, Straw Brush, Gap & Angle Brush, Flexible Tubes Brush for Spotless Dishwasher
	Palksky Dishwasher Cleaner Brush Kit, Dishwasher Cleaning Accessories, 2Pack 6PCS Dish Washer Deep Cleaner Brush – Flexible Tubes Brush, Crevice Brush, Air Gap Brush
	Dish Brush Set of 5 with Holder – Kitchen Scrub Brushes with Non-Slip Long Handle for Cleaning, Scrubber, Dishwashing, Dishes, Bottles, Straws, Cups, Pots & Sink, Black

Before You Start

Turn off and unplug the dishwasher or switch off the circuit at the breaker. Ensure the appliance has cooled if it was recently used. Have a soft sponge, a mild dish soap, and a small container for soaking if needed. Wear gloves if you prefer to protect hands from grime. Plan for a short maintenance window, typically 15–30 minutes, depending on how accessible the filter is on your model. Clear the area around the machine to avoid knocking items or splashing water.

Step-By-Step: How To Clean A Whirlpool Dishwasher Filter

Remove the lower spray arm and/or bottom rack to access the filter housing. Check your model’s manual if you’re unsure where the filter sits.
Carefully twist or lift the filter to disengage it from the housing. Some models use a simple reservoir cap; others require a quarter-turn.
Separate the filter components (typically a fine mesh screen and a larger plastic housing) and place them in warm water with a small amount of dish soap.
Use a soft-bristled brush or the designated dishwasher filter cleaning tool to scrub away residual food particles, grease, and mineral buildup. Avoid abrasive pads that could damage the mesh.
Rinse each piece thoroughly under running water until all soap and debris are removed. Shake off excess water and let the pieces air-dry for a few minutes.
Reassemble the filter and reinstall it into the housing. Ensure the assembly sits securely and that any locking mechanism engages properly.
Reinsert the lower rack and, if applicable, the spray arm. Run a quick test cycle with hot water to flush out any remaining debris.
Inspect the interior for any lingering buildup after the test cycle and repeat cleaning if necessary. Regular maintenance helps prevent clogs and improves cleaning results.

Troubleshooting

Symptom	Likely Cause	Fix	Prevention
Dishes still come out dirty	Filter clogged or misaligned	Re-clean and reseat the filter; check seals	Clean every 1–3 months or as needed
Unpleasant odor	Trap of trapped food particles	Clean filter and run a hot empty cycle with a dishwasher-safe cleaner	Run cycles regularly and avoid pre-rinsing too aggressively
Water standing in bottom	Filter or drain path blocked	Inspect and clear the filter and drain hose	Check for kinks and debris after each use
Filter difficult to remove	Stubborn residue or locking mechanism	Soak in warm soapy water; gently twist and seek manufacturer guidance	Perform routine maintenance to prevent buildup

Common Mistakes

Using abrasive scrubbers that damage the mesh.
Forgetting to reassemble the filter securely, causing leaks or poor cleaning.
Neglecting to clean the gasket and surrounding area, leading to odors.
Skipping the dry time and reinstalling a damp filter, which can trap moisture and promote mold.

Tips For Best Results

Use warm, soapy water for most grime; avoid harsh chemicals that could degrade plastics or seals.
Schedule filter maintenance with regular dishwasher cleaning to maintain optimal performance.
Keep a dedicated cleaning kit or brush set on hand for quick, thorough maintenance.
If the filter design varies by model, consult the user manual or Whirlpool support for model-specific steps.

Call A Professional

Consider contacting a technician if you notice persistent clogging after multiple cleanings, unusual noises during cycles, or frequent leaks around the door seal. Stop using the dishwasher if water leaks onto the floor or if the machine refuses to run after cleaning. Electrical or plumbing concerns should be addressed by a licensed pro.

FAQ

How often should I clean the Whirlpool dishwasher filter?

Most users benefit from cleaning every 1–3 months, or sooner if there are visible clogs or odors.

Can I use a dishwasher filter cleaning kit brush on any model?

Most kits are designed for common filter types; check compatibility with your Whirlpool model before use.

Is it safe to soak the filter in water?

Yes, soaking in warm, soapy water helps loosen grime before brushing.

What helps prevent future filter clogs?

Rinse off large food scraps before loading dishes and run hot cycles regularly to flush the system.

What if the filter won’t lock back into place?

Double-check alignment and ensure any locking tabs engage fully. If resistance continues, stop and consult a professional.

Should I clean the tub filter with every load?

Not every load, but periodic tub filter maintenance reduces the risk of buildup and improves cleaning performance.

Is professional service needed for persistent odors?

Yes, persistent odors may indicate deeper issues beyond routine filter cleaning.

Buying Guide

When selecting tools for Whirlpool dishwasher filter maintenance, consider size, compatibility, and ease of use. Look for a kit that includes multiple brush heads and a tub filter cleaning tool kit designed to access both the mesh and housing. Consider the following factors:

Size and compatibility: Ensure the cleaning brush kit fits the filters in your appliance model and reaches tight spaces.
Brush stiffness: A soft-bristled brush cleans effectively without damaging the mesh; avoid hard bristles that can tear the screen.
Multiple components: A set with several brushes helps tackle different parts of the filter and tub.
Ease of cleaning: Detachable pieces that are easy to rinse dry quickly are preferable.
Durability: Look for corrosion-resistant materials and sturdy handles for repeated use.
Brand guidance: Some brands offer model-specific maintenance tools; verify compatibility with Whirlpool dishwashers.

Consider how often you run the dishwasher, household size, and how often buildup occurs in your area (hard water can cause more mineral deposits). A practical approach is to keep a dedicated tool kit handy and schedule routine checks every few months. If replacing parts, compare options that fit your model and ensure a secure seal to prevent leaks.