Have you ever opened your washer and been hit with a musty odor that seems to linger on your clothes? If you are wondering how to rid washing machine of mildew smell, you are not alone. This is one of the most common laundry problems in American homes, and the good news is that it is usually easy to fix with a few simple cleaning habits and the right maintenance routine.
Why Washing Machines Develop Mildew Smell
A mildew smell in a washing machine usually comes from moisture, detergent residue, lint, and grime building up inside the drum, door seal, or detergent drawer. Front load washers are especially prone to this problem because their rubber gaskets can trap water. If the machine stays damp between loads, mold and mildew can start growing and create that unpleasant odor.
Common causes of washing machine odor
- Leaving the door closed after a wash cycle
- Using too much detergent or fabric softener
- Washing mostly in cold water
- Dirty door gaskets and seals
- Clogged drain pumps or filters
- Neglecting regular washer cleaning
How to Rid Washing Machine of Mildew Smell
If you want to know how to rid washing machine of mildew smell quickly, start with a deep cleaning cycle. This is the most effective way to remove odor-causing buildup from the tub and hidden parts of the washer.
Run a hot cleaning cycle
Set your washer to the hottest and longest cycle available. Add either 2 cups of white vinegar or a washer-safe cleaning product designed to remove mold and mildew odor. If your washer has a self-clean cycle, use that setting. After the cycle ends, run one more hot rinse cycle to clear out residue.
Clean the rubber gasket and door
For front load washers, the rubber seal is often the main source of mildew smell. Pull back the gasket and wipe away moisture, lint, and trapped debris with a microfiber cloth. Use a mixture of vinegar and water or mild soap to scrub any visible mold spots. Dry the area completely when finished.
Wash the detergent drawer
Remove the detergent and fabric softener drawer if possible. Soak it in warm water, then scrub away buildup with a small brush or sponge. This area can collect sticky residue that contributes to a musty washer smell.
Check the drain filter
A clogged drain filter can trap water, lint, and debris, which leads to a sour odor. Refer to your appliance manual to locate and clean the filter safely. Place a towel underneath before opening it, since water may spill out.
How to Prevent Washing Machine Mildew Smell
Once you know how to rid washing machine of mildew smell, the next step is keeping it from coming back. Prevention is much easier than repeated deep cleaning.
Leave the door open after use
After every load, keep the washer door or lid slightly open so the interior can dry out. Good airflow helps prevent mold, mildew, and stale odors.
Use less detergent
Too much detergent leaves behind film that feeds odor-causing buildup. Measure detergent carefully and avoid overusing fabric softener.
Clean the washer monthly
Make washer cleaning part of your monthly routine. Running a hot cleaning cycle once a month can help stop mold and detergent residue from accumulating.
Wipe down wet surfaces
After laundry day, wipe the drum, gasket, and door with a dry cloth. This small habit goes a long way toward preventing a smelly washing machine.
When to Call a Professional
If the mildew smell remains after several deep cleanings, the problem may be inside the drain hose, pump, or another internal component. In that case, a qualified appliance repair technician can inspect the washer and recommend the right fix.
A clean washer means cleaner clothes, fresher laundry, and fewer odor problems. By following these steps on how to rid washing machine of mildew smell, you can eliminate the musty odor and keep your appliance smelling fresh year-round.
