How do you clean the rubber gasket on a front-load washer?
Updated August 2026
20–30 minutes · Easy DIY
That musty smell lives in the folds of the rubber door boot, and clearing it out is a 20 to 30 minute job you repeat monthly. Peel the outer fold back all the way around, pull out the hair, coins, and black slime collected in the bottom third, scrub the folds and the small drain holes with a diluted bleach or vinegar solution, dry everything, then run the machine empty on Tub Clean. What keeps it gone is the habit afterward: wipe the boot dry and leave the door ajar between loads.
What you need
- Rubber gloves
- Microfiber cloths and an old towel
- An old toothbrush
- A spray bottle of diluted bleach (3/4 cup per gallon) or plain white vinegar
- A tub-clean tablet or 1 cup of bleach for the cycle
Before you start: Ventilate the room and wear gloves. Bleach solution plus vinegar, ammonia, or any acidic bathroom cleaner produces toxic gas, so pick one product for the whole job and rinse the boot before switching. Do not use a bleach cycle in a machine whose manual prohibits it. One more thing on the door-ajar habit: an open front-loader is an attractive hiding spot for small children and pets, so use the magnetic door prop many machines include, which leaves a ventilation gap without a climb-in opening.
Steps
- Glove up and open the door fully so light reaches the bottom of the boot.
- Peel the outer fold of the rubber boot back around the whole circle and look inside. The bottom third of that fold is where water sits after every cycle, and that is where the mold grows.
- Pull out the solids first by hand: coins, hairpins, bra wires, a lost sock, wads of pet hair.
- Spray the folds with the bleach solution or vinegar and let it sit 5 to 10 minutes so it actually kills the mold rather than smearing it. Use one or the other, never both.
- Scrub the folds with the toothbrush, then find the small drain holes at the bottom of the boot and clear each one. Blocked holes keep an inch of gray water standing in the fold permanently, which is the whole problem.
- Wipe everything out with cloths, go around a second time with clean water, and dry the boot, the door glass, and the glass rim completely.
- Pull the detergent drawer out, rinse it and its housing under hot water, and scrub the softener siphon cap where the pink sludge builds.
- Run the Tub Clean or Clean Washer cycle empty with the recommended tablet or 1 cup of bleach, and leave the door open to air out afterward.
Or hire it out
No one sells gasket scrubbing as a service. What you can pay for is the outcome of skipping it: a mold-rotted door boot runs $150–250 in parts and labor, and an appliance tech charges $100–180 just to show up and quote it.
Done. Now the part everyone skips: doing it again on schedule. Log it in OnOtto and the next reminder for washer gasket cleanings sets itself.
Log this task, get the next reminderFrequently asked questions
Bleach or vinegar for the mold?
Bleach kills mold on non-porous rubber more reliably, and 3/4 cup per gallon of water is the standard dilution. Vinegar is the better choice if anyone in the house reacts to bleach, if the manual prohibits it, or if the problem is mineral film rather than black spots. Either way the contact time does the work, so let it sit 5 to 10 minutes. Never mix them, and never chase one with the other in the same session.
How often should this happen?
Wipe the boot dry after the last load of the day, which takes 15 seconds, and deep clean it monthly. Households running 8 or more loads a week, or washing a lot of pet bedding, should do it every 2 to 3 weeks. Add a Tub Clean cycle every 30 washes or once a month, whichever comes first. Intervals by household size are on how often to clean a washer door gasket.
The smell came back within two weeks. What am I missing?
Usually detergent dosing. High-efficiency machines use 1 to 2 tablespoons of HE detergent per load, and most people pour four times that, which leaves a soap film in the drum and boot that feeds mold. Cut the dose, skip liquid fabric softener entirely, and run one hot wash a week instead of everything cold. If the odor persists after all that, check the drain pump filter behind the panel at the lower front, where a trapped sock can sour the whole machine.
The boot is torn or permanently stained. Replace or live with it?
Stains are cosmetic once the mold is dead, so live with them. Tears, splits, or rubber that has gone crumbly get replaced, because a compromised boot leaks water onto the floor during spin and that is a $150–250 job that becomes a flooring job if ignored. On a machine past 10 years with other faults, weigh it against how long a washing machine lasts before ordering parts.