How to Clean a Washer That Smells

Washer smells: identify the source and set a boundary

A washer that smells musty, sour, or stale usually has moisture and residue trapped somewhere that does not dry well. Common locations include the rubber gasket on a front-load machine, the detergent or fabric-softener dispenser, the bottom of the wash drum, the drain pump filter, and the hose or standpipe area. A top-load washer can also develop buildup under the lid, around the agitator or impeller, or in the dispenser channels.

This routine is for ordinary odor and light surface residue on a household washer. It covers stainless-steel or porcelain-coated drums, rubber door seals, plastic dispensers, and accessible filter areas when the owner’s manual permits cleaning there. It does not diagnose a blocked drain, failed pump, leaking hose, sewer-gas problem, contaminated water supply, electrical fault, or extensive mold growth. Do not dismantle the cabinet or reach into an inaccessible drain path; use the manual or a qualified appliance technician.

A sewage-like smell that is strongest near the drain hose or standpipe may be a plumbing or installation issue rather than a dirty washer. A burning, electrical, or hot-plastic odor is also outside this routine: stop using the machine and arrange service.

Preparation

Gather clean microfiber cloths, a soft toothbrush or soft nylon brush, warm water, and a small amount of fragrance-free dish detergent. Use a shallow pan or towels if your model has an accessible drain-pump filter. Have the owner’s manual available so you can confirm the approved washer-cleaning cycle, filter location, and any restrictions on bleach or commercial washer cleaners.

Remove all laundry from the machine. If a previous load has been sitting wet, wash it again according to its care label after the washer is clean. Unplug the washer before cleaning the gasket, dispenser, filter, or lower access panel. Open a window or run the room exhaust fan if the laundry area is poorly ventilated.

Do not begin by pouring several cleaners into the drum. Cleaning products are not interchangeable, and residues can react. If the manual allows diluted chlorine bleach for a washer-cleaning cycle, use only the specified compartment and amount. Never combine bleach with vinegar, citric acid, descaler, ammonia, or any other cleaner.

Step-by-step washer odor routine

1. Inspect the odor pattern. Smell the empty drum, the door gasket or lid area, the dispenser, the drain hose area, and any accessible filter. Look for lint, hair, gray or black residue, pooled water, detergent gel, or a foreign object. Do not scrape aggressively; the goal is to locate residue without damaging a seal or coating.

2. Clean the door gasket or lid area. For a front-loader, gently pull back each fold of the rubber gasket and remove lint, coins, hair, and damp residue by hand while wearing household gloves. Wipe the gasket with warm water and a small amount of dish detergent on a cloth. Use a soft toothbrush for grooves, then wipe again with clean water and dry thoroughly. Do not stretch, puncture, or remove the gasket unless the manual instructs you to do so. For a top-loader, wipe the underside of the lid, the rim, and the area around the agitator or impeller that the manual identifies as accessible.

3. Remove and wash the dispenser. Take out the detergent and fabric-softener drawer if it is removable. Rinse it under warm water, brush away soft buildup, and wipe the dispenser cavity with a damp cloth. Clear the small water channels gently with a soft brush; do not force a hard object into an inlet. Dry the drawer and reinstall it. If the drawer does not come out, wipe the accessible surfaces and follow the model instructions rather than prying it loose.

4. Check the drain-filter area only if your model has a user-accessible filter. Place towels and a shallow pan below the access point. Release trapped water slowly as directed in the manual, remove visible lint or small objects, rinse the filter, and reinstall it securely. Keep fingers away from sharp edges and internal components. If the filter is not user-serviceable, skip this step. Standing water that will not drain, repeated error codes, or a filter that will not reseat calls for service.

5. Run the approved cleaning cycle. Wipe away loose residue first, then run the washer-cleaning cycle with the product or cleaner specified by the manufacturer. If the machine has no dedicated cycle, use the manual’s recommended empty hot cycle and cleaning method. Do not add laundry. Chlorine bleach is not automatically safe for every washer or residue; use it only when the manual and product label permit it, and never mix it with acids or ammonia. A commercial washer cleaner should also be used exactly as labeled.

6. Rinse and dry the machine. If the cleaning instructions call for an additional rinse, run it. Wipe the door, gasket, lid, dispenser, and nearby panels dry. Leave a front-loader door ajar and a top-loader lid open when safe to do so. Leave the dispenser slightly open if the design permits. Do not close a damp washer immediately after the cycle.

7. Prevent the odor from returning. Measure the detergent for the load size and water conditions instead of adding extra. Use only detergent labeled for the washer type, especially high-efficiency detergent in an HE machine. Remove finished laundry promptly, keep the gasket and dispenser dry, and follow the manual’s recommended cleaning-cycle schedule. Fabric softener and excess detergent can leave residue, so use the amount and dispensing method on their labels and your washer instructions.

When to stop

Stop cleaning and arrange appliance or plumbing service if the washer leaks, will not drain, trips a breaker, shows a burning smell, or makes a new grinding noise. Stop if the gasket is torn, the drum coating is flaking, or a filter cannot be removed or reinstalled safely.

Visible mold covering a large area, recurring mold after cleaning, or mold associated with water damage is beyond a basic odor routine. EPA guidance recommends addressing the moisture source and using appropriate containment and protective measures for larger or more difficult mold problems. Do not run a washer with a suspected sewage connection problem because the odor may be entering through the drain system.

FAQ

Should I use vinegar to remove washer smells?

Do not add vinegar to a washer unless the manufacturer specifically permits it. Vinegar is an acid and must never be combined with chlorine bleach or products containing ammonia. Use the washer-cleaning product and method in the manual instead.

Why does my front-load washer smell worse than my top-loader?

Front-loaders use a sealed door gasket that can retain water, lint, and detergent residue after a cycle. The gasket and dispenser need regular wiping and drying, but a persistent odor can still indicate a drain or plumbing problem.

Can I clean the washer with bleach?

Only if the owner’s manual and the bleach label allow that use. Put it only where the instructions specify, use the stated amount, ventilate the area, and never combine it with acids, vinegar, ammonia, or another cleaner.

Why does the smell return after one cleaning?

A recurring odor can come from excess detergent, a damp gasket or dispenser, hidden residue, standing water, a partially blocked drain, or a plumbing issue. Repeat the approved maintenance cycle only as directed; if the odor returns quickly, have the drain and appliance checked.

Source note

This routine follows EPA guidance to control moisture and use appropriate precautions for mold-related cleanup, CDC guidance to clean surfaces before disinfecting when disinfection is needed, and manufacturer-style washer care guidance that emphasizes cleaning the drum, gasket, dispenser, and filter according to the model manual. Always treat the owner’s manual and product label as the controlling instructions for your specific washer. Sources: EPA Mold Cleanup in Your Home, CDC When and How to Clean and Disinfect Your Home, and Whirlpool How to Clean a Washing Machine.