Why Does My Washing Machine Stink? A Safe Cleaning Routine

Why does my washing machine stink?

A washing machine usually smells when moisture and residue remain in places that do not drain or dry completely. Common sources include detergent and fabric-softener buildup, body soil left behind by laundry, water trapped in a front-load door gasket, residue inside a dispenser, and a drain-pump filter that needs attention. A top-load washer can also hold buildup under the lid, around the tub ring, or in the fabric-softener dispenser.

The odor can be musty, sour, earthy, or similar to wet laundry. A sewage-like smell is different: it may indicate a drain-hose, standpipe, trap, or venting problem. This routine is for ordinary washer residue and dampness. It does not diagnose plumbing faults, repair a leaking machine, remove extensive mold contamination, or replace a damaged gasket, hose, pump, or seal.

Identify the washer and the boundaries

Check whether the machine is front-load or top-load, then find the owner’s manual or the manufacturer’s care instructions. Look for directions named “Clean Washer,” “Tub Clean,” or “Drum Clean,” and check whether the model has a removable dispenser or drain-pump filter. Some filters are intended for homeowner cleaning; others should be serviced by a technician.

For a front-load machine, inspect the rubber gasket by gently pulling back the folds. For a top-load machine, inspect the underside of the lid, the tub ring, and any dispenser. Do not assume that a visibly clean stainless-steel drum means the entire washer is clean. Avoid pulling, stretching, or puncturing a gasket, and do not remove panels to reach hidden components.

If there is visible mold over a large area, repeated sewage backup, standing water that does not drain, an electrical concern, or a strong odor after several correct cleaning cycles, stop. EPA guidance recommends appropriate precautions for mold cleanup, and larger or persistent problems may require professional assessment.

Preparation

Gather clean microfiber cloths, a soft nylon brush or old toothbrush, warm water, and the washer cleaner specified by the manufacturer. Use a small basin or towel if you will clean a dispenser or filter. Keep laundry, children, and pets away from the work area.

Read every label before use. Do not combine products. In particular, never combine chlorine bleach with vinegar, citric acid, acidic descalers, ammonia, toilet cleaner, or any other cleaner. If the manual permits bleach for a specific cleaning step, measure only the stated amount and use it exactly as directed. A manufacturer-approved washer-cleaning tablet or liquid is often the simplest option when the machine has a cleaning cycle.

Step-by-step washer odor routine

1. Empty the washer. Remove all clothing, loose items, and lint. Check the drum and the area around the door for small objects that could trap soil or interfere with drainage.

2. Clean the dispenser. Remove the detergent drawer or inserts if the manual says they are removable. Rinse them with warm water and loosen residue with a soft brush. Wipe the dispenser cavity without forcing water into electrical controls. Let the parts dry before reinstalling them. If the dispenser is not removable, wipe accessible surfaces with a damp cloth and follow the model instructions.

3. Wipe the gasket or tub-ring area. On a front-load washer, wipe the entire gasket, including the folds, with a damp microfiber cloth. Remove hair, lint, and detergent residue. On a top-load washer, wipe the underside of the lid, the tub ring, and the area around the dispenser. Use a soft brush for seams, but do not use a sharp object or abrasive scrubber.

4. Check the drain-pump filter only if the manual allows it. Place a towel and shallow container below the access point. Disconnect power, open the filter slowly, and let trapped water drain. Remove visible lint or small objects, rinse the filter if the instructions permit, and reinstall it securely. If the filter is difficult to access, leaks, will not reseat, or is not listed as a user-serviceable part, leave it alone and contact the manufacturer or a qualified technician.

5. Run the washer-cleaning cycle. With the washer empty, add the manufacturer-approved washer cleaner in the location and amount stated on its label or in the manual. Select the cleaning cycle. If the machine does not have one, follow the manual’s approved alternative; do not improvise a chemical mixture. Keep the room ventilated and do not interrupt the cycle unless the instructions require it.

6. Run an extra rinse only when needed. If the cleaning product label or washer manual calls for a rinse, run it with the washer empty. Otherwise, an extra rinse is not automatically necessary. Never add a second cleaner to a cycle that already contains another product.

7. Dry the machine. Wipe away remaining moisture from the gasket, lid, dispenser area, and door glass. Leave a front-load door or top-load lid ajar when the washer is not in use, unless the machine’s placement or manufacturer instructions prohibit it. Leave the dispenser slightly open if the manual permits. Remove finished laundry promptly.

When to stop

Stop cleaning and arrange service if the washer leaks, fails to drain, makes a new grinding or electrical sound, or develops an odor that smells like sewage or burning. A recurring sewer odor can originate in the household drain system rather than on the washer’s surfaces. A torn gasket, cracked dispenser, loose hose, or persistent standing water also needs repair instead of more cleaner.

For extensive visible mold or contamination, do not dry-brush or spread the material through the room. EPA recommends following appropriate containment and protective measures for mold cleanup; professional help is reasonable when the affected area is extensive or the source of moisture has not been corrected.

How often should I clean a washing machine?

Use the cleaning interval in your washer manual. A practical trigger is a recurring odor, visible residue, or a machine that stays damp between loads. More frequent cleaning may be needed when the washer handles heavily soiled laundry or is used often.

Should I leave the washer door open?

Usually, yes, if the manufacturer permits it and the door cannot create a hazard. Air circulation helps accessible surfaces dry. Keep the opening away from children and pets, and follow the manual for models with a specific storage position.

Can I use vinegar or bleach to remove the smell?

Only if the washer manufacturer explicitly permits that product for your model and gives the amount and location. Do not mix bleach with vinegar, acids, ammonia, or other cleaners. An approved washer cleaner and the machine’s cleaning cycle are easier to control.

Why does the washer still smell after cleaning?

The source may be a drain-pump filter, hose, gasket, dispenser cavity, plumbing connection, or hidden component that the routine cannot safely reach. Recheck the manual, confirm that the machine drains correctly, and seek service if the odor persists.

Source note

This routine uses CDC principles for cleaning and product-label use, EPA guidance on moisture and mold boundaries, and manufacturer guidance for washer-cleaning cycles and model-specific components. Washer designs differ, so the owner’s manual controls whenever it gives a more specific instruction.