Quick Answer: To clean a washing machine, run an empty hot cycle with a washer cleaner or the amount of bleach your manual recommends, then scrub the door gasket, detergent drawer and drain filter. Repeat about once a month. Leaving the door open after each load and using less detergent stops most odors from returning.
Your laundry comes out of the washer and somehow smells worse than when it went in. Towels have a sour, musty note, and when you open the machine you catch a whiff of something damp. It feels backwards, but it is one of the most common household complaints. A washing machine cleans your clothes, yet almost nobody cleans the washing machine.
The good news is that most washer odors come from a few predictable causes, and fixing them takes less than an hour. This guide covers why washers smell, how to clean front load and top load machines step by step, and the habits that keep the smell from coming back.
Short answer: Most washer odors come from a damp film of detergent residue, fabric softener, lint and body soil that builds up inside the machine. Bacteria and mold feed on that film in the dark, moist interior, producing a musty or sour smell that transfers to your laundry.
Here are the usual culprits:
Short answer: Front load washers are more likely to develop odors because their airtight door seal traps moisture, and the rubber gasket folds hold water, lint and residue. Top load washers smell less often but still build up residue under the agitator, around the rim and in dispensers.
| Feature | Front Load Washer | Top Load Washer |
|---|---|---|
| Odor risk | Higher | Moderate |
| Main problem area | Rubber door gasket | Under the rim and agitator |
| Drain filter access | Usually a small door at the front bottom | Often not user accessible |
| Water use | Lower, so residue rinses away less | Higher in traditional models |
| Best drying habit | Leave the door and drawer open | Leave the lid open |
Neither type is “dirty” by design. Both simply need regular maintenance, just in slightly different places.
You likely have most of these at home already:
Safety note: Never mix bleach with vinegar, ammonia or other cleaners. Combining them can release toxic gases. If you use both on different days, run a rinse cycle in between.
Pull back the rubber seal around the door opening. You will often find lint, hair, socks, coins and dark spots. Wipe out debris, then scrub the folds with a cloth dipped in warm, soapy water or a diluted bleach solution. Dry the gasket thoroughly when finished.
Most drawers release with a small tab. Soak it in warm, soapy water, scrub the corners with a toothbrush, and clean the cavity where the drawer slides in. This spot often hides the slimiest buildup.
Check your manual first. The filter usually sits behind a small panel at the bottom front of the machine. Place a towel and a shallow tray underneath because water will drain out. Unscrew the filter slowly, remove lint and debris, rinse it, and twist it back in firmly.
Use the “Tub Clean,” “Clean Washer” or hottest setting. Add a washer cleaner tablet to the drum or the amount of bleach your manufacturer recommends to the bleach dispenser. Many brands, including LG, Samsung and Whirlpool, suggest running a tub cleaning cycle about once a month.
After the cycle ends, wipe the drum, door glass and gasket with a dry cloth, then leave the door and drawer open for several hours.
Wipe under the lid and around the top rim of the tub where scum collects. Remove and soak removable fabric softener or bleach dispensers.
If your machine has an agitator, clean around its base with a brush. Some agitators have a removable cap or top section where residue hides.
Select the clean washer setting or the hottest, largest load. Add a washer cleaner or bleach as your manual directs. On older top loaders, some people pause the cycle once the tub fills to let the solution soak for about an hour before finishing.
Let the tub air dry completely before your next load.
Short answer: Vinegar and baking soda can help freshen a washer and loosen mild mineral buildup, but they are not strong disinfectants. Some appliance manufacturers advise against regular vinegar use because repeated exposure may wear rubber seals and hoses. Check your manual before using either.
Here is a practical way to think about your options:
| Method | Best For | Limitations |
|---|---|---|
| Commercial washer cleaner | Monthly maintenance, odor and residue | Ongoing cost |
| Bleach cycle | Disinfecting and heavy musty odors | Cannot be mixed with other cleaners; not for every finish |
| White vinegar | Mild odors and mineral deposits | May affect rubber parts with frequent use |
| Baking soda | Light deodorizing | Little cleaning power on heavy buildup |
In our experience, the method matters less than the habits. A washer cleaned monthly and left open to dry rarely develops a serious smell, no matter which cleaner you use.
Short answer: Run a full cleaning cycle about once a month, wipe the door gasket weekly, and clean the drain filter every few months. Large households, pet owners and anyone who washes mostly in cold water may need to clean more often.
| Task | How Often |
|---|---|
| Leave door or lid open to dry | After every load |
| Wipe door gasket (front load) | Weekly |
| Clean detergent drawer | Every 2 to 4 weeks |
| Run tub clean cycle | Monthly |
| Clean drain pump filter | Every 3 months, or sooner if draining slows |
| Check hoses for cracks or bulges | Every 6 to 12 months |
If you want to fit these tasks into a bigger routine, our guide on how often you should clean your house shows how to spread chores across the week and month.
Cleaning removes the smell. These habits keep it from coming back.
Most washer odors respond to cleaning and better habits. Contact a qualified appliance technician if you notice:
These signs can indicate a drainage, hose or pump problem that cleaning alone will not solve.
Towels often smell sour when detergent residue builds up in the washer or in the fibers, or when wet towels sit too long before drying. Clean the machine, use less detergent, skip fabric softener on towels, and dry them promptly. An occasional hot wash also helps remove trapped body oils.
Yes, most manufacturers allow bleach in an empty hot cleaning cycle. Add it to the bleach dispenser using the amount your manual recommends. Never combine bleach with vinegar, ammonia or other cleaners, and run an extra rinse cycle afterward if you will be washing dark or delicate clothing next.
Pull back the rubber gasket and remove any lint or debris. Scrub the folds with a toothbrush and a diluted bleach solution or washer cleaner, then rinse and dry completely. Some deep staining may remain even after the mold is cleaned. If the seal is cracked or heavily stained, replacing it may be best.
Yes. Leaving the door or lid open after each load lets the drum, gasket and dispenser dry, which prevents musty odors and mold growth. If you have small children or pets, open the door only partway or close the laundry room door to keep everyone safe.
Clean the drain pump filter about every three months in most homes. Check it sooner if the washer drains slowly, leaves clothes soaking wet or shows an error code. Homes with pets, kids or lots of towels may need to clean it monthly because lint and hair collect faster.
Cold water does not create odors directly, but washing exclusively in cold water allows greasy detergent and softener residue to build up more easily. Keep using cold water for most loads if you prefer, but run a monthly hot cleaning cycle and an occasional warm wash to dissolve that buildup.
Vinegar can freshen a washer and loosen light mineral deposits, but it is a weak disinfectant. Some manufacturers advise against frequent vinegar use because it may wear rubber seals and hoses over time. Check your owner’s manual first, and never mix vinegar with bleach in the same cycle.
A rotten egg or sewage smell often points to bacteria in the drain hose, a clogged drain filter or a plumbing issue such as a dry trap or blocked vent. Clean the filter and run a hot cleaning cycle first. If the smell continues, have a plumber or appliance technician inspect the drain.
A smelly washing machine is rarely a sign that something is broken. In most cases it simply needs the same attention the rest of your home gets: a monthly hot cleaning cycle, a quick wipe of the gasket and drawer, a clean drain filter, and the habit of leaving the door open. Those small steps keep your laundry fresh and help your machine last longer, which matters even more in humid coastal homes across Norfolk and Hampton Roads.
If keeping up with every corner of the house feels like too much on top of laundry day, the Beauty Guaranteed LLC team is happy to help. Explore our cleaning services or reach out for a free estimate whenever you are ready for a little extra time back in your week.