Laundry Odors Guide
How to Clean a Smelly Washing Machine
A smelly washing machine usually comes from trapped moisture, detergent residue, fabric softener buildup, dirty gaskets, a clogged drain filter, or laundry left inside too long. The fix is to clean the parts that hold residue, run the correct washer-cleaning cycle, dry the machine after use, and adjust detergent habits so the smell does not return.
Quick Answer
To clean a smelly washing machine, remove any laundry, wipe the drum, door, gasket, detergent drawer, and visible residue, then run the machine’s clean washer or tub clean cycle with a washer cleaner or the cleaner approved in your manual. For front-load machines, clean the rubber door seal and drain pump filter if your model has one. Leave the door and dispenser drawer open afterward so the inside can dry.
Do not mix bleach, vinegar, ammonia, disinfectants, drain cleaners, or multiple washer cleaners. Use one cleaning method at a time, follow the product label, and run an extra rinse if strong odor or cleaner residue remains.
Why This Odor Happens
A washing machine can smell bad even though it uses water and detergent because the inside does not always dry fully. Moisture can sit in the rubber door seal, detergent drawer, drum holes, drain filter, hoses, and low spots around the tub.
Residue also matters. Too much detergent, non-HE detergent in a high-efficiency washer, heavy fabric softener use, cold-only washing, body soil, lint, and pet hair can leave a film inside the machine. That film can trap odor and make clean laundry smell musty, sour, or stale.
Front-Load Washers Need Extra Drying Time
Front-load machines seal tightly around the door. That seal helps prevent leaks, but it can also hold water, lint, and detergent film. After cleaning, leave the door open when safe to do so and wipe the gasket so air can reach the damp areas.
Common Sources
Before running repeated cleaning cycles, check the parts that most often hold moisture and residue.
Rubber Door Gasket
Front-load door seals can trap water, lint, hair, detergent sludge, and small items. Pull the folds back gently and inspect the lower part of the seal.
Detergent Drawer
Liquid detergent and fabric softener can leave sticky buildup in the drawer and the drawer cavity. Remove the drawer if your manual allows it.
Drain Pump Filter
Some front-load washers have a small lower access panel with a drain hose and filter. Coins, lint, hair, and stale water can collect there.
Drum And Tub
Residue behind the visible drum can create a sour odor, especially after cold washes or oversized detergent doses.
Wet Laundry Habits
Clothes left in the washer after the cycle ends can sour quickly. The smell can transfer back into the machine.
Laundry Room Airflow
A damp laundry area, blocked dryer vent, or poor airflow can slow drying and make washer odors more likely.
Step-by-Step Fix
1. Empty The Washer And Check The Smell Type
Remove all laundry and look inside the drum, gasket, detergent drawer, and around the door. A musty or sour smell usually points to moisture and residue. A sewer-like smell may point to a drain or plumbing issue. A burning or electrical smell needs a different safety response.
2. Wipe Visible Residue First
Use a damp microfiber cloth with mild dish soap and warm water to wipe the door glass, drum rim, gasket folds, and dispenser area. Remove lint, hair, detergent paste, and softener buildup before running a cleaning cycle.
3. Clean The Detergent Drawer
If your washer manual allows drawer removal, take out the drawer and rinse it with warm water. Scrub corners and softener compartments with a small brush. Dry it before reinstalling, and wipe the drawer cavity carefully.
4. Clean The Door Gasket On Front-Load Washers
Pull the gasket folds back gently and wipe the lower channel where water collects. Use only a cleaner that is safe for your model and gasket material. If using a bleach solution approved by your manual, ventilate the room, wear gloves, and never combine it with vinegar or other cleaners.
5. Check The Drain Filter If Your Model Has One
Place towels and a shallow tray under the access panel. Drain the small hose if present, then remove and rinse the filter according to the manual. Stop if the filter is stuck, leaking, cracked, or the instructions are unclear.
6. Run A Clean Washer Or Tub Clean Cycle
Run the machine’s clean washer, tub clean, or self-clean cycle with an empty drum. Use a washing machine cleaner tablet, powder, or liquid made for this purpose, or the specific cleaning option approved by your appliance manual. Do not add detergent or laundry during this cycle.
7. Run An Extra Rinse If Needed
If the machine smells strongly of cleaner after the cleaning cycle, run a rinse and spin cycle with an empty drum. This helps remove leftover cleaning product from the tub and dispenser path.
8. Dry The Washer And Watch For Return Odor
Wipe the gasket, door glass, and dispenser area dry. Leave the door and dispenser drawer open when safe for children and pets. If the smell returns within a few loads, reduce detergent, clean the filter again, and check for drainage or plumbing problems.
Best Products or Methods
Choose the cleaning method based on the odor source, machine type, and appliance manual. Use one method at a time.
| Method | Best For | Use When |
|---|---|---|
| Washing machine cleaner tablet or powder | Drum residue, sour washer smell, monthly maintenance | Use with the clean washer or tub clean cycle when the manual allows it. |
| Enzyme cleaner | Organic residue from body soil, sweat, pet laundry, or food soils | Use on removable parts or laundry items only when the label and washer manual allow it. |
| White vinegar | Light mineral film and mild sour odor in some laundry routines | Use only if the washer manual allows it. Do not mix with bleach or other cleaners. |
| Baking soda | Light deodorizing for laundry loads and mild odor support | Use sparingly and avoid packing powder into dispensers or filters. |
| Manual gasket and drawer cleaning | Visible slime, lint, detergent paste, and trapped moisture | Use before deep cleaning cycles so residue is physically removed, not just scented over. |
| Odor neutralizer | Residual laundry-room odor after the washer is cleaned | Use around the room, not as a substitute for cleaning the machine source. |
Use The Appliance Manual First
Washer brands differ on approved cleaners, bleach amounts, vinegar use, filter access, and gasket care. When the manual conflicts with a general cleaning tip, follow the manual.
What Not To Do
Do Not Only Mask The Smell
Fragrance beads, perfume sprays, and scented detergents can cover odor for a short time, but they do not remove residue from the gasket, drawer, filter, or tub.
Do Not Mix Cleaning Products
Never mix bleach with vinegar, ammonia, disinfectants, drain cleaners, or other household cleaners. Toxic vapors can form, and the reaction may happen inside a closed washer.
Do Not Overuse Detergent
More detergent does not mean cleaner laundry. Extra detergent can leave film inside high-efficiency machines and feed recurring washer odor.
Do Not Ignore A Sewer-Like Smell
If the odor smells like sewage, rotten eggs, or drain gas, the issue may involve the standpipe, trap, venting, or plumbing connection rather than the washer tub alone.
Do Not Scrape The Gasket With Sharp Tools
Sharp tools can tear the rubber seal and cause leaks. Use a soft cloth, small brush, or cotton swab instead.
Do Not Ignore Burning Odors
If the washer smells like burning plastic, electrical heat, or smoke, stop using it and disconnect power if it is safe to do so. Contact a qualified appliance technician.
Prevention
Professional Help
Call An Appliance Technician
Call a qualified technician if the washer has a burning smell, electrical odor, repeated error codes, leaks, loud pump noise, a stuck filter, or odor that remains after proper cleaning.
Call A Plumber
Call a plumber if the odor smells like sewage, appears when the washer drains, comes from the standpipe, or returns after the machine itself is clean.
Leave The Area For Gas-Like Odor
If the smell is gas-like, rotten-egg-like, or paired with dizziness, irritation, or trouble breathing, leave the area and contact the appropriate utility or emergency service. Do not run the washer to test it.
Related Odor Guides
Laundry Odors
Find causes and fixes for sour towels, musty clothes, washer smells, and laundry room odor.
Enzyme Cleaners
Learn when enzyme cleaners help with organic odor sources and when another method is safer.
Baking Soda
Use baking soda carefully for mild deodorizing without creating paste buildup in appliances.
FAQ
Why does my washing machine smell even after I clean it?
The odor may be coming from the gasket folds, detergent drawer cavity, drain pump filter, standpipe, or residue behind the drum. Wipe visible buildup first, clean removable parts, run the correct washer-clean cycle, and check drainage if the smell returns quickly.
Can I use vinegar to clean a smelly washing machine?
Only use vinegar if your washer manual allows it. Vinegar may help with mild odor or mineral film in some cases, but it should never be mixed with bleach or other cleaners. Some manufacturers warn against frequent acid use on rubber parts.
Can I use bleach in a smelly washing machine?
Use bleach only if your appliance manual approves it and follow the exact amount and cycle instructions. Ventilate the room, wear gloves if needed, and do not add vinegar, ammonia, detergent, or other chemicals to the same cleaning cycle.
How often should I clean my washing machine?
Many households do well with a monthly clean washer or tub clean cycle. Clean more often if you wash pet items, towels, work clothes, or heavy soil loads. Follow your machine’s manual for the safest schedule.
Why do my clothes smell musty after washing?
Common causes include laundry left in the washer too long, too much detergent, cold-only washing, a dirty gasket, a clogged drain filter, or residue in the drum. Clean the washer and adjust detergent dosing before rewashing the clothes.
When is a washing machine smell a plumbing problem?
A sewer-like or rotten-egg odor that appears during draining may come from the standpipe, trap, venting, or drain connection. If cleaning the washer does not help, call a plumber for inspection.
Keep The Washer Dry Between Loads
The best long-term fix for a smelly washing machine is not only a cleaning cycle. It is a routine: remove laundry quickly, wipe moisture traps, use the right detergent amount, clean the machine monthly, and let air reach the drum after use.