How To Clean Your Washing Machine: A Practical Deep-Clean Guide

A washing machine is supposed to make things cleaner—but over time, it quietly collects soap scum, hard water deposits, mold, mildew, and trapped dirt. That build-up can leave clothes smelling off, make the machine work harder, and even shorten its life.

This guide walks through how to deep clean your washing machine (both front-loaders and top-loaders), what to use, how often to do it, and what to watch out for. It’s meant as a general roadmap—what’s right for you depends on your machine, your water, and how you use it.

Why Your Washing Machine Needs Deep Cleaning

Even if you can’t see it, most washers build up:

• Detergent residue – especially from heavy or frequent use of liquid detergent and fabric softener
• Hard water minerals – from calcium and magnesium in the water
• Mold and mildew – in damp, dark spots like rubber gaskets and dispensers
• Body oils and grime – from clothes that don’t fully rinse away

This can lead to:

• Musty or sour smells inside the drum
• Clothes that come out smelling “not quite fresh”
• Visible black or pink spots (mold or mildew) on seals and dispensers
• Slower draining or occasional error codes related to clogs
• Noise or vibration if residue affects moving parts

How quickly this happens depends on a few variables:

You don’t need to diagnose all of this perfectly. It’s enough to notice: Does it smell? Look grimy? Drain slowly? Those are your cues to deep clean.

Step 1: Identify Your Washer Type (It Changes the Process)

Before you start, it helps to know which kind of machine you have:

Front-load vs. Top-load

• Front-load washing machines

  • Door at the front
  • Have a rubber door gasket (the flexible ring around the opening)
  • Known for efficiency but prone to musty smells and mold around the gasket
  • Often have a small access panel for a drain pump filter

• Top-load washing machines

  • Lid on top
  • May be agitator-style (a post in the middle) or impeller-style (low disk at the bottom)
  • Usually less prone to gasket mold but can collect soap scum around the tub, agitator, and rim

High-efficiency (HE) vs. traditional

• HE machines

  • Use less water
  • Often require HE detergent (low-sudsing)
  • More sensitive to overuse of detergent and softeners

• Traditional machines

  • Use more water
  • Somewhat more forgiving, but still build up residue over time

Your machine’s manual (physical or online) often includes a recommended cleaning routine and any products to avoid. If instructions in this article conflict with the manual, the manual wins.

Step 2: What You Can Use To Clean a Washing Machine

There are three common approaches:

Many people combine vinegar + baking soda for manual deep cleaning, but not at the same time in the same spot. When mixed directly, they mostly fizz and neutralize each other; they’re more effective when used in separate steps (for example, vinegar in the tub, baking soda in the drum or gasket).

Variables to think about:

• Your manufacturer guidance – Some brands discourage vinegar or harsh chemicals.
• Material sensitivity – Rubber gaskets and plastic parts may degrade faster with strong chemicals or repeated harsh scrubbing.
• Allergies/sensitivity – Scented cleaners may bother some people; simple ingredients are often easier to tolerate.

Step 3: Deep Clean Routine for Front-Load Washers

1. Clean the rubber door gasket (the mold hotspot)

This is where many front-loaders start to smell.

1. Open the door and gently pull back the rubber gasket to see inside the folds.
2. Wipe out debris – hair, lint, coins, small objects.
3. Mix a simple solution:
   • Water + a bit of mild detergent, or
   • Water + a small amount of vinegar, if your manual doesn’t warn against it.
4. Wipe all around the gasket, inside and out, with a soft cloth or sponge.
5. For visible mold or mildew:
   • Apply your cleaning solution to a cloth and hold it against the spots for a few minutes.
   • Gently scrub with a soft brush or old toothbrush.
6. Dry thoroughly with a clean towel. Leaving it dry helps prevent future growth.

2. Clean the detergent dispenser drawer

1. Pull out the detergent drawer as far as it goes; some allow you to press a tab and remove it fully.
2. Soak removable parts in warm, soapy water.
3. Use a small brush (old toothbrush, bottle brush) to scrub:
   • Inside the drawer
   • The cavity where the drawer slides in
4. Rinse, dry, and reassemble.

This area often collects thick, sticky detergent and softener residue—especially if you tend to over-pour.

3. Run a hot “maintenance” or “drum clean” cycle

Most front-loaders have a “tub clean,” “drum clean,” or “maintenance” cycle. If yours doesn’t, use the hottest, longest cycle with no clothes.

You generally have two paths:

Option A: With a washer cleaner product

1. Follow the package directions and your machine’s manual.
2. Add the cleaner where directed (drum or dispenser).
3. Run the dedicated cleaning or hottest cycle.
4. Wipe the door and gasket dry after the cycle.

Option B: With vinegar and/or baking soda

If your manual allows it:

1. Add vinegar to the empty drum (often around a cup or so, but follow your comfort and any guidance).
2. Run the hottest, longest cycle with no laundry.
3. After that cycle, you can:
   • Sprinkle a small amount of baking soda inside the drum,
   • Run a short, hot cycle again to help with lingering odors.
4. When finished, wipe the drum, door, and gasket with a dry cloth.

4. Clean the drain pump filter (if accessible)

Many front-loaders have a small panel near the bottom front for the drain pump filter.

1. Check the manual first; there may be specific instructions.
2. Place a shallow tray or towel under the panel—some water will usually come out.
3. Slowly open the filter cap and let water drain.
4. Remove the filter and clear lint, coins, and debris.
5. Rinse the filter, reinsert, and close securely.

A clogged filter can cause drain issues, odors, and error codes, so occasional checks can help.

Step 4: Deep Clean Routine for Top-Load Washers

Top-loaders are a bit easier to reach inside, but residue often hides under and around the rim, agitator, and dispensers.

1. Clean the tub rim, lid, and exterior surfaces

1. Mix warm water and a little mild detergent in a bucket or bowl.
2. Wipe:
   • The top rim of the tub (often a ring of grime hides here)
   • The underside of the lid
   • Control panel and exterior surfaces
3. For stubborn grime, a soft brush or non-scratch scrub pad helps.

2. Clean any removable parts

• Fabric softener dispensers, bleach dispensers, or trays may lift out.
• Soak them in warm, soapy water; scrub and rinse.
• Wipe the cavities they sit in, then dry and reinstall.

3. Run a hot cleaning cycle

Again, two basic options:

Option A: Washer cleaner product

1. Follow the product label and your machine’s manual.
2. Use the “clean washer,” “tub clean,” or hottest, longest cycle.
3. Leave the lid open afterward to dry.

Option B: Vinegar and/or baking soda (if allowed)

1. Set the washer to hot water and large / maximum load size with no laundry.
2. Add vinegar to the water once the tub begins to fill (amount depends on your comfort and machine guidance).
3. Let it agitate briefly, then pause (if your machine allows).
4. Let it soak for a while to help loosen residue, then let the cycle finish.
5. Optionally, run a shorter hot cycle afterward with a small amount of baking soda sprinkled in the tub.

For agitator-style machines, residue can also build up:

• Around the base of the agitator
• Under the top of the agitator, if removable (check your manual before trying to remove anything)

You can wipe what you can reach with a cloth and mild detergent solution.

How Often Should You Deep Clean Your Washing Machine?

There’s no one-size-fits-all rule. Frequency depends on:

• How often you do laundry (daily vs. occasionally)
• Whether you regularly wash heavily soiled items (gym clothes, work uniforms, pet bedding)
• Water hardness in your area
• How much detergent and softener you use
• Whether you already do light, ongoing maintenance (like leaving the door open)

As a general range many manufacturers suggest:

• A deep clean about once a month if you use the machine heavily or notice odors
• Every few months if you do moderate laundry and don’t see or smell problems

If you wash only occasionally and keep the machine dry and ventilated, you may not need to deep clean as often.

A simple way to gauge it:
If you notice a smell, visible residue, or cloudy glass on a front-loader door, it’s time.

Everyday Habits That Help Keep Your Washer Clean

Small habits can cut down how often you need deep cleaning:

1. Use the right amount of detergent

Using too much detergent is one of the biggest causes of build-up.

• HE machines typically need less detergent than people expect.
• If you see lots of suds or your clothes feel slimy, you may be using too much.

Reading your detergent label and your washer manual helps you get in the right ballpark, but you’ll still need to adjust based on:

• Load size
• Soil level (light vs. heavy)
• Water hardness

2. Rethink fabric softener

Liquid fabric softeners often leave a waxy coating that builds up in:

• The dispenser
• The drum and tub
• Your clothes

If you love it, you don’t have to stop, but be aware it increases how much cleaning the machine may need over time.

3. Let the washer dry out between loads

Moisture is mold’s best friend.

• Front-loaders: Leave the door slightly open when not in use.
• Top-loaders: Leave the lid open for a while after the final load.

If you have young children or pets and worry about safety, you’ll need to balance ventilation with keeping the machine inaccessible—some people compromise by airing it out for a limited time after each wash.

4. Remove wet clothes promptly

Letting wet laundry sit for hours:

• Traps moisture and warmth inside
• Encourages mildew and odors, both in clothes and in the machine

You don’t have to leap up the second a cycle finishes, but regularly leaving loads overnight tends to show up as odor problems later.

When a Simple Deep Clean Might Not Be Enough

Most everyday odor and residue issues improve with the steps above. Sometimes, though, deeper problems are at play:

• Persistent mildew smell even after several hot cleaning cycles
• Visible black mold that keeps coming back quickly
• Frequent drainage errors or standing water in the drum
• Water leaks around the door or underneath the machine

In those cases, the cause might be:

• A drain hose or internal line partially blocked
• A faulty or failing pump
• Long-term mold growth behind panels or deep inside parts you can’t safely access
• A door seal or gasket that’s physically damaged or worn out

At that point, a qualified appliance technician or your manufacturer’s support line is in a better position to inspect and advise. Home deep cleaning has limits; you can handle the surfaces and user-accessible parts, but not the sealed internal components.

What To Consider When Deciding Your Cleaning Routine

Since every household and machine is different, you can shape your own routine by weighing:

1. Your washer type

   • Front-loaders often benefit from more frequent gasket and dispenser cleaning.
   • Top-loaders often need more focus on the rim and agitator areas.

2. Your water and usage

   • Hard water + frequent loads = more build-up, usually more cleaning.
   • Occasional light use with good ventilation = less frequent deep cleans.

3. Your comfort with cleaning products

   • If you prefer minimal chemicals, you may lean toward vinegar and baking soda (where allowed).
   • If you prefer simple, guided steps, you may like using a branded washer cleaner.

4. Your time and energy

   • Some people prefer a monthly quick routine (wipe gasket, clean dispenser, run a cycle).
   • Others do less frequent but more thorough sessions (including filter and hose checks).

5. Signs from the machine itself

   • Smell, visible grime, slow draining, or cloudy glass on a front door are often your most honest signals.

If you know your washer model, your water hardness, and your laundry habits, you already have the key pieces you need to decide what to do, how often, and how intensive the cleaning should be. This guide gives you the menu of options; you choose what fits your machine and your home.