Whirlpool Quiet Partner III Filter Cleaning

Quick Answer

To clean your Whirlpool Quiet Partner III filter, rotate the circular upper filter assembly counter-clockwise to lift it out, then remove the flat mesh screen below it. Scrub both parts under warm running water with a soft brush and mild dish soap to remove grease and food debris.

Look, most dishwasher 'repairs' I get called out for are just dirty filters. Takes me five minutes to clean them and the homeowner's been dealing with grimy glasses for six months. Skip this long enough and the drain pump starts working overtime, which can burn it out. A burnt pump is a $200 repair minimum. Spend five minutes now or spend two hundred bucks later. That's basically the whole story.

WhirlpoolDishwasherSeverity: low

Time to Fix

10–20 min

Difficulty

beginner

Parts Cost

$0 (no parts needed)

Tools Needed

Old toothbrush or soft-bristled dish brush, Mild dish soap (Dawn works well)

Whirlpool Quiet Partner III Filter Cleaning

The Quiet Partner III has a two-piece filter system Whirlpool put right in the middle of the tub floor. Honestly it's one of the better filter designs they've made. Check it monthly if you're running this thing daily. I've seen filters that haven't been touched in two years, completely coated in a grey slime that smells like a fish tank that's been closed up in a hot garage. Don't be that person.

Common Causes

Running back-to-back loads with rice, pasta, or leafy greens without rinsing the plates first. Those tiny fragments pass right through the spray water and pile up against the mesh until it's basically papier-mache.
Hard water scale building up on the fine mesh screen over months, creating a mineral film you can't always see but that seriously restricts water flow.
Starchy foods like oatmeal, mashed potatoes, or egg yolk drying and hardening into a paste on the mesh. Regular water pressure won't break that loose. It needs a brush.
Fruit pits, toothpicks, small bones, or twist ties that fell off the dish rack and landed directly on the filter housing, partially blocking the pump inlet.
Infrequent cleaning intervals. Most people clean it once and forget about it for 18 months. By then you've got layers of grease and food compressed into something that doesn't really rinse off without soaking.

Symptoms You May Notice

Tiny food particles or what looks like gritty sand stuck inside your coffee mugs or on the bottom of glasses after a full cycle.
Standing water in the bottom of the tub 30+ minutes after the cycle finishes. Not a huge puddle, but more than a cup sitting there.
That funky sour smell hitting you when you open the door. Not detergent smell. More like a kitchen sponge that's been wet for a week.
Dishes coming out with a white cloudy film that won't wipe off easily, especially glassware and plastic containers.
The dishwasher running noticeably louder than usual during the drain cycle, kind of a low grinding hum.

Tools Required for Diagnosis

Old toothbrush or soft-bristled dish brushMild dish soap (Dawn works well)FlashlightWhite vinegar (for mineral scale)Small bowl or container for soakingRubber gloves for sump debris removal

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

Frequently Asked Questions

How often should I clean my Whirlpool Quiet Partner III filter?

Honestly it depends on how you load it. If you're scraping plates but not pre-rinsing, do it once a month. If you're a pre-rinser who basically washes dishes before they go in, every three to six months is probably fine. But I always tell people to check it monthly anyway. Takes two minutes to pull it out and look at it, and you'll catch odors before they start. Way easier than dealing with a machine that smells like a swamp.

Can I put these filters in the dishwasher to clean them?

No, don't do that. The logic makes sense, I get it, but here's the problem: if you throw the filters in there without them installed, the pump has no protection and can pull in food debris that damages the impeller. Hand wash them in the sink. Seriously takes less than five minutes and you can actually see when the mesh is fully clear. It's one of those things where the 'clever' shortcut creates a $200 repair.

Why is there still a smell after cleaning the filters?

If the filters are clean and you're still getting a smell, the odor's coming from somewhere else. Check the rubber door gasket around the entire perimeter of the door. Mold loves that gasket, especially the bottom section. Wipe it with a vinegar and water solution. Also try running an empty hot cycle with a cup of white vinegar in a bowl on the top rack. Hits all the spray arm channels and corners you can't reach by hand.

What if my filter mesh is torn or damaged?

Replace it right away. Don't run the machine with a torn filter. Even a small hole lets seeds, glass fragments, or small bones through to the pump. The pump impeller is a $150 to $250 part plus labor if you need a repair tech. The replacement filter assembly for the Quiet Partner III runs about $15 to $25 on most parts sites. Way cheaper to just swap it out, and it's a five-minute job.

Can I use bleach to clean the filters or run a bleach cycle?

Don't use bleach on these filters, especially if your dishwasher has a stainless steel tub interior. And never mix bleach with vinegar. I know some people swear by bleach for sanitizing, but it degrades rubber components over time and can damage the mesh on cheaper filter assemblies. Stick with dish soap and vinegar for scale. If you want to sanitize the tub, most of these machines have a built-in sanitize cycle. Use that instead, that's what it's there for.

Models Known to Experience CLEANING Errors

This repair applies to most Whirlpool dishwashers with this error code. Common model numbers include:

WDF330PAHB0, WDF330PAHS0, WDF530PLYW6, WDT720PADM0, WDF520PADM7, GU2300XTSB1, DU1055XTSS3, WDF760SADB0

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 17, 2026