How to Clean Agitator Washing Machine

Written by

Ethan Wrenford

:

September 5, 2026

Your washing machine cleans your clothes. But what cleans the machine? Agitator models, in particular, tend to hoard soap scum, mineral deposits, and the occasional patch of mold in spots you’d never think to check. Ignore it long enough, and you’ll notice the signs: a musty smell that clings to fresh laundry, clothes that come out looking slightly grayer than they went in, and a machine that seems to be aging faster than it should.

How to Clean Agitator Washing Machine

Here’s the reassuring part. Cleaning an agitator washer isn’t complicated, and it won’t eat up your afternoon. The hands-on portion takes under an hour, and most of that is just waiting around while the machine soaks. A few things you probably already have in the pantry, plus the steps below, and you’re set. Let’s get into it. In this guide on how to clean agitator washing machine, we’ll discuss the supplies you need and detailed steps to get your machine looking new again.

Materials Needed

Gather your supplies first. It sounds obvious, but hunting for a toothbrush mid-clean is a small annoyance you can easily avoid.

White Vinegar

Distilled white vinegar does the heavy lifting here. It cuts soap scum, breaks down mineral buildup, and takes the edge off stubborn odors. Have roughly four cups ready.

Baking Soda

Baking soda partners with the vinegar to scrub away grime and soak up whatever smells are hanging around. One cup should do it.

Microfiber Cloths

Soft microfiber won’t scratch the surfaces as you wipe. Two or three cloths give you enough to work with.

Old Toothbrush or Soft Brush

A small brush gets into the grooves around the agitator and under the rim, which is exactly where the gunk likes to hide.

Bucket and Warm Water

Keep a bucket of warm water nearby for rinsing cloths and mixing solutions as you go.

Rubber Gloves

Older machines can hold a surprising amount of grime. Gloves keep your hands out of it and away from the cleaning agents.

Baking Soda
Partners With the Vinegar

7 Simple Steps on How to Clean Agitator Washing Machine

Step 1: Empty the Machine

Check that the drum is truly empty. Stray socks have a way of hiding, and a rogue coin can rattle around during a cycle. A quick look now saves hassle later.

Step 2: Run a Hot Water Cycle with Vinegar

Set the washer to its hottest, largest cycle. Pour four cups of white vinegar straight into the drum and start it up. Let it churn for a minute or two so the vinegar disperses through the water, then pause the machine and walk away for an hour. That long soak is what loosens the grime and knocks out the bacteria responsible for those off smells.

Step 3: Add Baking Soda and Finish the Cycle

Once the hour’s up, tip a cup of baking soda into the drum. Resume the cycle and let it finish all the way through. Vinegar and baking soda together tend to break down buildup fairly well, leaving the interior noticeably fresher.

Step 4: Clean the Agitator

If your model has a fabric softener dispenser at the top of the agitator, pull it out and rinse it under warm water. Dip your toothbrush into a vinegar solution and work it into the agitator’s grooves. Pay attention to the base especially, since residue seems to gather there more than anywhere else. Finish with a wipe from a microfiber cloth.

Set the
Washer to Its Hottest

Step 5: Wipe Down the Drum and Rim

Gloves on. Dampen a cloth with warm water and a splash of vinegar, then wipe down the inside of the drum. Move slowly under the rim, where mold and soap scum like to settle out of sight. For anything that won’t budge, bring in the brush.

Step 6: Clean the Dispensers and Exterior

Detachable detergent and bleach dispensers can come out and soak in warm water. Scrub off the crusty bits with your brush. Then give the outside of the machine a wipe, control panel and door included, using a clean cloth.

Step 7: Run a Final Rinse Cycle

Run one more short hot cycle with nothing added. This flushes out loosened debris and any cleaning solution still lingering. When it wraps up, prop the lid open and let the interior air-dry. Skipping this bit is how leftover moisture invites mold to move right back in.

Work through these steps on how to clean agitator washing machine in order. Block out about an hour, though remember, a good chunk of that is soak time where you’re free to do something else.

Finish With a Wipe
From a Microfiber Cloth

Common Mistakes to Avoid

The most serious slip-up is mixing bleach and vinegar. Combined, they release chlorine gas, which you genuinely do not want to breathe. Use them in separate cycles, never together. It’s worth repeating because people forget.
Skipping the drying step is another one. Close the lid on a damp drum, and you’ve basically built mold a home. Leave it open.
Then there’s detergent. Many people use far more than they need, which ironically creates the same buildup they’re trying to scrub away. Stick to the recommended dose, and if your machine calls for high-efficiency detergent, switch to it. And those small parts, the dispensers and the softener cup? They tend to hold the most residue, so don’t let them slide.

Do You Need to Use Professionals?

For routine upkeep, no. The steps above are well within reach for most people, and running through them every month or two keeps the machine in good shape for little more than the price of a bottle of vinegar.

There are exceptions, though. Persistent leaks, odd noises, or a smell that survives a thorough clean could point to something mechanical, or mold that’s worked its way into the internal components. When that’s the case, an appliance technician is the smarter call. Catching a problem early often means avoiding a heftier repair bill later on.

How Much Will It Cost?

Doing this yourself is about as cheap as home maintenance gets. A bottle of white vinegar runs somewhere around $3 to $5, and a box of baking soda is roughly a dollar. Since both stretch across many uses, a single cleaning session might cost you less than a dollar in actual supplies. The cloths and brush are one-time buys you’ll get years out of.

Bringing in a professional is a different story. Appliance cleaning or servicing generally lands between $75 and $200, depending on where you live and how involved the job turns out to be. For most households, the DIY approach handles things fine, which leaves that budget for an actual repair when one comes along.

You've Basically
Built Mold a Home

Frequently Asked Questions

Q1: How Often Should I Clean My Agitator Washing Machine?

Cleaning it once every one to two months keeps most machines fresh and running smoothly. If you regularly wash heavily soiled loads or live somewhere with hard water, monthly is the safer bet since buildup accumulates faster under those conditions.

Q2: Can I Use Bleach Instead of Vinegar?

You can use bleach to disinfect, but never mix it with vinegar, as that combination produces toxic fumes. If bleach is your preference, run a separate hot cycle with about a cup of it, then follow up with a plain rinse cycle to clear the residue.

Q3: Why Does My Washing Machine Still Smell After Cleaning?

A smell that hangs on usually means moisture is trapped somewhere or mold is still lurking in a hidden pocket like the rim or dispensers. Leave the lid open between washes to let things dry, and give those awkward spots an extra scrub. If the odor won’t quit, it may hint at a drainage issue worth having looked at.

Q4: How Can I Prevent My Washing Machine from Smelling?
Prevention is always better than cure, and there are a few simple things you can do to keep your washing machine smelling fresh. First, make sure to regularly clean the rubber gasket around the door or lid of your machine with a solution of water and vinegar. This will help prevent mold growth in this area.

You should also leave the lid or door open between washes to allow moisture to evaporate, preventing any lingering smells. Additionally, it’s important to empty lint traps and clean out filters regularly to avoid buildup that can lead to odors.

Prevention is Always
Better Than Cure

Keep Your Machine Fresh and Running Longer

A clean washing machine isn’t only about a pleasant smell, though that’s a nice bonus. It protects your clothes and can add years to the appliance itself. Set aside an hour every month or two for these seven steps, and you’ll sidestep the musty odors, the stubborn buildup, and the premature wear, all for the cost of a few pantry staples.

The trick is making it routine. Put a reminder on your calendar, keep the vinegar and baking soda somewhere easy to grab, and get to the job before trouble starts brewing. A bit of regular attention pays off in cleaner laundry and, honestly, a healthier home. Thanks for reading this guide on how to clean agitator washing machine.

Leave a Comment