If your laundry comes out smelling less than fresh—or your machine has developed a musty odor—there’s a good chance it’s overdue for a cleaning. Most homeowners never think to clean their washing machine, but it needs regular maintenance just like any other appliance.
Here’s a complete guide for both front-loaders and top-loaders, plus how to tell when a bad smell is more than just a cleaning issue.
Why Washing Machines Get Dirty
Detergent residue, fabric softener buildup, hard water minerals, and moisture create the perfect environment for mold and mildew—especially in front-loaders. Over time, this buildup affects wash quality, produces odors, and can even shorten the machine’s lifespan.
How to Clean a Front-Load Washer
- Wipe the door gasket — Pull back the rubber seal and wipe out any trapped lint, debris, or visible mold with a damp cloth and white vinegar.
- Clean the detergent drawer — Remove the drawer completely and rinse it under hot water. Use an old toothbrush to scrub away buildup in the compartments.
- Run a hot cleaning cycle — Add 2 cups of white vinegar to the drum and run a hot cycle. Then add ½ cup of baking soda and run another hot cycle.
- Clean the drain filter — Most front-loaders have a small access panel near the bottom. Place a towel underneath, unscrew the filter, and clear any lint or debris.
- Leave the door open — After every wash, leave the door ajar to let the drum dry out and prevent mold growth.
How to Clean a Top-Load Washer
- Run a hot water cycle with vinegar — Set to the largest load and hottest temperature. Add 4 cups of white vinegar and let it agitate for a minute, then pause and let it soak for an hour.
- Wipe the drum and agitator — While soaking, dip a cloth in the vinegar water and wipe down the top of the drum, the agitator, and the lid.
- Complete the cycle, then run with baking soda — Let the first cycle finish, then run another hot cycle with 1 cup of baking soda.
- Wipe down and air out — After the second cycle, wipe everything down and leave the lid open to dry.
The Detergent Mistake Most People Make
Using too much detergent is one of the biggest contributors to washer odor and buildup. High-efficiency (HE) machines in particular require very little detergent—far less than the cap markings suggest. Use only HE-labeled detergent in HE machines, and use about half the recommended amount. Your clothes will be just as clean, and your machine will stay cleaner longer.
When Smell Signals a Real Problem
Sometimes a bad smell isn’t just about cleaning. If you notice a burning or electrical smell, stop using the machine immediately—this can indicate a motor or wiring issue. A sulfur or sewage smell may point to a drain line problem. These aren’t issues a cleaning cycle will fix.
If cleaning doesn’t resolve the odor, or if you’re noticing performance issues alongside the smell, it’s worth having a technician take a look.
Appliance Intervention serves Mechanicsburg, PA and surrounding areas. Call (717) 210-2930 to schedule a diagnostic visit.