Why Does My Washing Machine Smell Like Rotten Eggs and How to Fix It
Your washing machine smells like rotten eggs because sulfur-reducing bacteria thrive in damp, unclean areas like the door seal, detergent drawer, or drain hoses.
These bacteria produce hydrogen sulfide gas, which causes the foul odor.
To fix it, start by cleaning these parts with vinegar and baking soda.
Running hot water cycles can also help eliminate the smell.
Don’t forget to clear any drain clogs and ensure proper ventilation to prevent moisture buildup.
If odors persist, it might be a plumbing issue.
Keep going to uncover effective cleaning tips and prevention strategies.
Common Causes of Rotten Egg Smell in Washing Machines

If your washing machine smells like rotten eggs, sulfur-reducing bacteria are usually to blame.
These bacteria thrive in damp, unclean areas inside your washer, especially where odor buildup occurs.
Residue from detergent and fabric softener can accumulate in the door seal and drain hose, providing a perfect environment for sulfur bacteria to grow.
Poor ventilation and leftover moisture encourage mold growth, which worsens the smell.
The drain hose and door seal are common hotspots for this problem, as debris and water often get trapped there.
If you don’t clean these parts regularly, sulfur bacteria multiply, causing that persistent rotten egg odor.
Keeping these areas clean and dry can help prevent the smell and maintain a fresh-smelling washing machine.
Identifying Odor Sources in Different Washer Components

Although odors in your washing machine can seem to come from nowhere, pinpointing the exact source helps you tackle the problem effectively.
Common odor sources are often hidden in key components where moisture and debris accumulate, encouraging bacteria growth.
Odors often stem from hidden spots where moisture and debris promote bacteria growth.
- Door seal: Mold and mildew thrive in the rubber door seal, trapping moisture and grime.
- Detergent drawer: Residue buildup here fosters bacteria growth, causing unpleasant smells.
- Drain filter: Dirt, lint, and debris gather in the drain filter, harboring bacteria that produce sulfur-like odors.
- Interior drum: Without regular cleaning, mold and bacteria develop inside the drum, especially in damp conditions.
Identifying these areas lets you focus your cleaning efforts and eliminate the rotten egg smell efficiently.
How Sewer Gas Can Affect Washing Machine Smells

Besides internal components, external factors like sewer gas can also cause your washing machine to smell like rotten eggs.
Sewer gas contains sulfur compounds, such as hydrogen sulfide, which create that distinct rotten egg smell.
If your drain trap is clogged, damaged, or dry, it can let sewer gas escape and enter your laundry area.
Improper venting or blockages in the sewer line can also cause these odors to back up into the washing machine.
A kinked or disconnected drain hose further increases the chance of sewer gas infiltrating the drum.
You’ll often notice the smell right after a wash cycle, when pressure changes in the drain and vent system occur.
To fix this, inspect and clean the drain trap, ensure proper venting, and repair any sewer line issues.
Cleaning the Drum to Eliminate Unpleasant Odors
To keep your washing machine smelling fresh, you should regularly clean the drum using simple household ingredients.
Effective drum cleaning prevents mold buildup and eliminates odors that cause that rotten egg smell.
Here’s how to do it:
- Run a hot water cycle with two cups of vinegar to dissolve soap scum and kill bacteria inside the drum.
- Follow with a baking soda cycle to neutralize odors and remove any residue left behind.
- Wipe the interior drum using a damp cloth or sponge, focusing on any visible deposits or mold spots.
- Leave the door open after each wash to let the drum air dry, reducing moisture that encourages mold buildup.
Regular use of vinegar and baking soda keeps odors at bay and your washing machine fresh.
Removing Mold and Mildew From Door Seals
Cleaning the drum helps reduce odors, but mold and mildew can still hide in the rubber door seal of your washing machine.
Moisture and debris trapped in the folds of the door seal create a perfect environment for mold growth, which causes that unpleasant odor.
Regularly inspect the seal for visible mold, soap scum, and dirt, especially in crevices.
For effective cleaning, wipe the seal thoroughly with a mixture of water and white vinegar or use a commercial mildew remover, focusing on the folds.
Removing and washing the rubber gasket periodically helps prevent buildup and maintains a tight seal.
After each wash, leave the door open to let the seal dry completely.
This simple step reduces the risk of mold and mildew returning and keeps your washing machine smelling fresh.
Proper Maintenance of Detergent Drawers and Filters
While many focus on the drum and door seal, maintaining your detergent drawer and filters is equally important to prevent odors.
Residue buildup in these areas can lead to mold and mildew, causing that rotten egg smell.
To keep things fresh, make sure to:
- Regularly remove and soak the detergent drawer in hot water with vinegar to dissolve soap scum and prevent odor.
- Thoroughly clean hard-to-reach spots in the drawer using a toothbrush or small brush.
- Inspect and clean the filter often to remove lint and trapped debris.
- Allow the detergent drawer to dry completely before reinserting it to inhibit mold and mildew growth.
Following these steps ensures your washing machine stays clean and odor-free.
Inspecting Drain Hoses and Pumps for Blockages
Keeping your detergent drawer and filters spotless helps reduce odors, but you shouldn’t overlook the drain hoses and pumps.
Check the drain hose for kinks, blockages, or clogs that trap water and cause foul smells.
Inspect the drain hose for any kinks or clogs that can trap water and lead to bad odors.
Remove and clean the pump filter regularly to prevent debris buildup that can emit rotten egg odors.
Make sure the drain pump works properly by listening for unusual noises or testing how well it drains water.
Inspect the drain hose and pump housing for leaks or cracks where sewer gases might escape.
Also, ensure the drain hose is connected and positioned correctly below the standpipe to maintain proper water flow and avoid backflow issues, which can worsen odors.
Regular inspections keep your washing machine smelling fresh.
Using Vinegar and Baking Soda for Effective Odor Removal
If your washing machine smells like rotten eggs, running an empty hot water cycle with white vinegar can help eliminate the odor.
It does this by dissolving soap residue and killing sulfur-releasing bacteria.
Vinegar is a natural disinfectant that breaks down mold and mildew causing the washing machine smell.
Follow up with a baking soda cycle to neutralize lingering odors and freshen the drum.
For effective odor removal:
- Add 2 cups of vinegar to a hot water cycle and run it empty.
- Run a second hot water cycle with 1 cup of baking soda.
- Use this vinegar and baking soda routine monthly to prevent odors.
- Leave the washer door open after cycles to let it dry.
This simple method keeps your washing machine free from rotten eggs smell and smelling fresh.
When to Call a Professional for Sewer or Plumbing Issues
Using vinegar and baking soda can often clear up unpleasant smells in your washing machine.
But persistent rotten egg odors might signal a deeper problem.
If you notice the smell won’t go away or if your washer drains slowly, you could be facing sewer or drainage blockages.
These issues let sewer gases leak into your home through damaged pipes or clogged venting.
When odors worsen or you experience backups, it’s time to call a professional plumber.
They’ll inspect and clear your sewer lines, drain hoses, and venting systems to eliminate the source of the smell.
Don’t ignore these signs, as sewer gas leaks pose health risks.
For safety and effective resolution, trust a plumber to handle complex blockages and venting problems.
Tips to Prevent Future Odors in Your Washing Machine
Since moisture and residue create the perfect environment for odors, you should leave your washing machine door open after each cycle to let it dry thoroughly.
This simple step helps prevent mold and mildew growth in the door seal and drum.
For effective odor prevention, follow these tips:
- Perform regular cleaning by running a monthly maintenance cycle with hot water and vinegar or a specialized cleaner to remove residue and bacteria.
- Wipe down the door seal, detergent dispenser, and gaskets weekly to eliminate mold and soap scum buildup.
- Check the drain hose and filter to ensure they’re free of kinks and clogs, preventing trapped water that causes bad smells.
- Keep the laundry area well-ventilated and dry to reduce humidity and discourage mold and mildew growth.
These habits will keep your washing machine fresh and odor-free.
Frequently Asked Questions
How to Get Rid of Rotten Egg Smell in Washing Machine?
You can get rid of that rotten egg smell by running a hot cycle with vinegar, then baking soda.
Clean seals, drawers, and drum regularly.
Leave the door open to dry, and use washing machine cleaners occasionally.
Does a Sulfur Smell Always Mean Repairs?
No, a sulfur smell doesn’t always mean you need repairs.
You can often fix it with thorough cleaning and better ventilation.
But if the odor persists, you should check for plumbing issues and consider professional help.
How to Get Rid of Eggy Drain Smell?
Don’t worry; it’s not permanent!
Run a hot cycle with vinegar, then baking soda to neutralize odors.
Clean detergent drawers and seals, clear hoses, and maintain regularly to keep your machine smelling fresh and odor-free.
How to Remove Bad Smell From Washing Machine?
You can remove bad smells by running a hot cycle with white vinegar, then baking soda.
Wipe seals and drawers regularly, leave the door open to dry, and use commercial cleaners to keep your washing machine fresh.
Conclusion
Now that you know why your washing machine smells like rotten eggs, aren’t you ready to tackle the problem head-on?
By regularly cleaning the drum and checking seals for mold, you can keep that foul odor at bay.
Don’t forget to inspect hoses for any blockages too.
The power of vinegar and baking soda can also work wonders to refresh your machine.
If the smell persists, calling a professional might be the best move.
After all, a fresh-smelling washer means cleaner clothes and a happier home.
In conclusion, taking proactive steps to maintain your washing machine is key to eliminating that unpleasant rotten egg smell. Regular cleaning, using natural deodorizers like vinegar and baking soda, and keeping an eye on seals and hoses are essential.
If needed, don’t hesitate to reach out to a professional for help. A clean washing machine leads to fresher clothes and contributes to a more enjoyable home environment.