· Appliance Maintenance · 16 min read
How To Clean Mold From Washing Machine

How To Clean Mold From Washing Machine
Mold in a washing machine creates unpleasant odors. It also affects the cleanliness of your clothes. Finding mold in your appliance can feel disheartening. Many people face this common household issue. But do not worry, I am here to help you fix it. This guide teaches you how to clean mold from your washing machine. We will cover why mold grows and what tools you need. You will learn specific steps for both front-load and top-load models. I will also share tips for preventing future mold growth. This article helps you keep your washing machine fresh and your laundry clean.
Takeaway
- Identify Mold Sources: Mold often thrives in damp areas like door seals and detergent dispensers.
- Choose Effective Cleaners: Use bleach for tough mold or vinegar and baking soda for a natural approach.
- Clean Thoroughly: Systematically clean the gasket, dispenser, drum, and filters.
- Prevent Future Growth: Leave the door open, wipe down surfaces, and run regular cleaning cycles.
Mold removal from a washing machine involves several steps. First, prepare your cleaning solutions like bleach or white vinegar. Next, target the specific moldy areas such as the door gasket, detergent dispenser, and drum. Finally, run a hot cleaning cycle to sanitize the machine. Regular maintenance helps prevent future mold growth.
Why Mold Appears in Your Washing Machine
You might wonder why mold chooses your washing machine as a home. Washing machines offer the perfect environment for mold to thrive. Mold needs moisture, warmth, and a food source to grow. Your washer provides all three in abundance. The dark, damp interior is a prime spot.
Laundry residue acts as a food source for mold. This includes leftover detergent, fabric softener, and dirt from clothes. These residues build up over time. They create a sticky film. This film becomes a breeding ground for mold spores. Each wash cycle adds more moisture to the machine. Without proper drying, mold begins to grow.
Another major reason is poor ventilation. Many people close the washing machine door immediately after a cycle. This traps moisture inside. The trapped moisture never fully evaporates. This warm, humid air creates ideal conditions for mold. Front-load washers are especially prone to this issue. Their airtight seals hold moisture inside.
Warm water cycles also contribute to mold growth. Modern washing machines often use less water and cooler temperatures. This saves energy. However, it can also mean that mold spores are not effectively rinsed away. Older machines used more hot water. Hot water helps kill mold and bacteria. Understanding these causes helps you prevent mold from returning.
Essential Supplies for Mold Removal
Before you start cleaning, gather the right tools. Having everything ready makes the job easier and more efficient. You likely have most of these items at home already. Safety is important when dealing with mold. Always protect yourself during the cleaning process.
First, you need rubber gloves. These protect your hands from mold and cleaning chemicals. A face mask is also a good idea. It prevents you from inhaling mold spores, which can be irritating. Old towels or rags are essential for wiping surfaces. You will use these to scrub and dry different parts of the machine.
For cleaning solutions, you have a few options. White vinegar is a popular natural cleaner. It is effective at killing mold and mildew. You can use it alone or with baking soda. Baking soda helps absorb odors and provides a gentle abrasive. These natural options are great if you prefer to avoid harsh chemicals.
Another powerful option is bleach. Bleach is highly effective at killing mold and sanitizing surfaces. Use it with caution. Always dilute bleach with water as directed. Never mix bleach with vinegar or ammonia. This creates toxic fumes. For scrubbing, a stiff brush or an old toothbrush helps reach tight spots. A spray bottle can make applying solutions easier. Gathering these supplies ensures you are ready to tackle the mold effectively.
Step-by-Step: Cleaning Mold from a Front-Load Washer
Front-load washing machines are notorious for mold growth. Their door gaskets and detergent dispensers are common problem areas. Cleaning these parts is crucial. I find tackling one area at a time works best. This ensures a thorough clean.
The Rubber Gasket (Door Seal)
The rubber gasket is the most common spot for mold in a front-load washer. Moisture and lint get trapped here. Start by pulling back the rubber seal around the door opening. You will likely see black mold and slimy residue. I always wear gloves for this part.
Create a strong cleaning solution. You can use a 1:1 mixture of white vinegar and water. For tough mold, use a 1:1 mixture of bleach and water. Dip a clean rag into your chosen solution. Wipe down the entire gasket. Make sure to get into all the folds and crevices. An old toothbrush can help scrub stubborn spots. I often let the solution sit for a few minutes. This allows it to break down the mold. After scrubbing, wipe the gasket clean with a damp cloth. Then, dry it thoroughly. This step is critical for preventing future mold growth. For a detailed guide on maintaining this specific part, consider reading our article on how to clean the rubber gasket in your washing machine.
The Detergent Dispenser
The detergent dispenser also harbors mold and mildew. Leftover soap and softener create a sticky environment. Most dispensers are removable. Pull out the drawer carefully. You might need to press a release tab.
Once removed, inspect all compartments. You will probably find mold, especially in the fabric softener section. Wash the dispenser under hot running water. Use an old toothbrush or a small brush to scrub away any mold and residue. A solution of warm soapy water works well. For stubborn mold, soak the dispenser in white vinegar for 30 minutes. Rinse it thoroughly afterwards. Clean the dispenser housing inside the machine too. A spray bottle with vinegar or bleach solution helps reach these areas. Wipe it down with a damp cloth. Let all parts dry completely before putting the dispenser back. Maintaining this part keeps your clothes smelling fresh. Learn more about maintaining this specific part through our guide on how to clean your softener dispenser in a washing machine.
The Washer Drum
After cleaning the visible mold, it is time to deep clean the drum. This removes hidden mold and odors. A self-clean cycle often comes with modern machines. If your machine has one, use it. Otherwise, you can run a manual cleaning cycle.
Add two cups of white vinegar to the detergent dispenser. Pour half a cup of baking soda directly into the drum. Set your machine to the hottest water setting available. Choose the largest load size. Start the wash cycle without any clothes. Let the machine run for a few minutes. Then, pause the cycle and let the water sit in the drum for 30-60 minutes. This allows the vinegar and baking soda to penetrate the mold. Resume the cycle and let it finish. This combination works wonders on mold and odors. For an even deeper clean, you can run a second cycle with two cups of bleach instead of vinegar and baking soda. Make sure to wipe down the drum after the cycle finishes. Our guide on how to clean your washing machine with baking soda and vinegar offers more insights.
Step-by-Step: Cleaning Mold from a Top-Load Washer
Top-load washing machines can also develop mold. The process is similar to front-loaders but with different focal points. Their design allows for better air circulation in the drum. However, mold can still hide in agitators, dispensers, and under the rim.
The Agitator and Inner Drum
Mold can grow around the agitator in a top-load washer. It also collects on the inner sides of the drum. Start by inspecting these areas. You might see slimy residue or black spots. If your agitator is removable, take it out for easier cleaning.
Prepare a cleaning solution using white vinegar or bleach. For vinegar, mix equal parts vinegar and water. For bleach, use one cup of bleach per gallon of water. Dip a stiff brush or sponge into the solution. Scrub the top and sides of the agitator. Reach into any crevices. Then, scrub the inside walls of the washer drum. Pay attention to the areas around the water jets and under the rim. Rinse the scrubbed areas with clean water. I often use a spray bottle with clean water for rinsing. Wipe down the entire inner drum and agitator thoroughly.
The Dispenser and Lid Underside
Top-load washing machines have detergent and softener dispensers too. These can be located on top of the agitator or in a corner of the drum. Remove them if possible. Clean them with hot soapy water and a brush. If mold is present, soak them in vinegar for 30 minutes. Rinse well and dry.
The underside of the washer lid also collects moisture. This makes it a prime spot for mold growth. Wipe down the entire underside of the lid with your cleaning solution. Pay attention to hinges and crevices. Use an old toothbrush for tight spots. Rinse and dry the lid completely. This prevents mold from dripping into your clean laundry.
Running a Deep Cleaning Cycle
After cleaning the accessible parts, run a deep cleaning cycle. This helps sanitize the internal components. It flushes out any remaining mold spores and detergent buildup. This step is essential for complete mold removal.
Fill the washer with the hottest water setting available. Add two cups of white distilled vinegar to the water. Let the machine agitate for a minute to mix the vinegar. Then, pause the cycle and let the water sit for at least an hour. You can even let it sit for a few hours for very stubborn mold. This soak time allows the vinegar to kill mold and dissolve residue. After soaking, add half a cup of baking soda directly to the water. Resume the cycle and let it complete. The baking soda helps neutralize odors and provides a gentle abrasive action. For persistent odors, you can run a second cycle with one cup of bleach instead of vinegar and baking soda. Ensure no clothes are in the machine for these cycles. Always run an empty rinse cycle after using bleach. This washes away any bleach residue.
Tackling Stubborn Mold and Odors
Sometimes, mold can be persistent. You might still see black spots or smell a musty odor after initial cleaning. This means the mold has deeply rooted. Do not give up hope. Extra steps can help you get rid of it. This includes focused treatments and thorough drying.
Spot Treatment for Stubborn Mold
For individual, stubborn mold spots, you need a targeted approach. Mold often grows deeply into plastic or rubber. A stronger solution might be necessary. I sometimes use a mold and mildew remover specifically designed for bathrooms. These products contain stronger chemicals. Always check product labels for safety instructions.
Apply the remover directly to the mold spot. Let it sit for the recommended time, usually 5-10 minutes. Use a stiff brush or a non-abrasive scrubber. Scrub the area vigorously. Rinse the area thoroughly with clean water. Repeat if necessary. For very stubborn spots on the rubber gasket, you can try saturating a rag with bleach and tucking it into the folds. Let it sit overnight. In the morning, remove the rag and wipe the area clean. Always ventilate the room well when using strong chemicals.
Addressing Persistent Odors
A lingering musty smell indicates hidden mold or excessive moisture. Even if you cannot see the mold, its spores might still be present. Activated charcoal or odor absorbers can help. Place a bowl of activated charcoal inside the empty washer drum. Close the door and let it sit for 24-48 hours. This absorbs bad smells.
Another option is running an “Ozone” or “Sanitize” cycle. Some newer machines have these features. They use special technology to kill bacteria and mold. If your machine lacks these, consider a professional washing machine cleaner. These come in tablet or liquid form. They are designed to clean the machine’s internal components. Follow the product instructions carefully. Often, they involve running an empty hot cycle. Regular airing out of the machine also helps significantly.
Long-Term Mold Prevention Strategies
Preventing mold is far easier than cleaning it. Good habits keep your washing machine fresh and mold-free. Simple changes in your laundry routine make a big difference. I always follow these steps myself.
Proper Machine Ventilation
The most important prevention tip is ventilation. Always leave your washing machine door ajar after each load. This allows air to circulate inside the drum. It helps moisture evaporate. For front-load washers, this is especially critical due to the tight seal. If you have small children or pets, a door prop or child lock can keep the door open safely. Avoid closing the dispenser drawer completely either. Let it air out as well.
Regular Wiping and Drying
After your last load of laundry for the day, take a few minutes to wipe down the machine. Use a clean, dry cloth. Wipe the inside of the drum. Pay close attention to the rubber gasket on front-loaders. Dry all the folds and crevices. Wipe the detergent dispenser area too. This removes any leftover moisture and detergent residue. It takes only a minute or two but significantly reduces mold risk.
Using the Right Detergent and Quantity
Excessive detergent is a common cause of mold. Modern high-efficiency (HE) washers require very little detergent. Using too much creates excessive suds. These suds leave behind residue. This residue becomes food for mold. Always use HE-specific detergent for HE machines. Read the detergent label for recommended amounts. For most loads, only one or two tablespoons are enough. Avoid overfilling the detergent dispenser. Also, use liquid detergent instead of powder if possible. Powdered detergents can sometimes clump and leave more residue.
Running Maintenance Cycles
Regular maintenance cycles keep your machine clean internally. Aim to run an empty cleaning cycle once a month. Use hot water for this cycle. You can add two cups of white vinegar or a washer cleaning tablet. This flushes out soap scum, mineral deposits, and mold spores. Some machines have a dedicated “Clean Washer” cycle. Use this feature. These cycles help maintain a fresh environment inside your machine. This prevents mold from growing in hidden areas.
Prompt Laundry Removal
Do not leave wet laundry in the machine. Remove clothes immediately after the cycle finishes. Leaving damp clothes creates a humid environment. This encourages mold growth inside the drum. Transfer clothes to the dryer right away. If you cannot move them immediately, at least open the washer door. This allows some air circulation.
When to Call a Professional
Most mold issues in washing machines are manageable with DIY methods. However, some situations require professional help. Knowing when to call an expert saves you time and ensures safety. I recommend considering professional assistance in a few specific cases.
Severe Mold Infestation
If you have cleaned your washing machine multiple times and mold keeps returning rapidly, it might be a severe infestation. This could mean mold has spread beyond visible areas. It might be deep within the machine’s internal components. These areas are difficult to access without specialized tools. A professional appliance technician can dismantle parts of the machine. They can clean hard-to-reach areas. They can also identify if mold is growing in the hoses or pump.
Health Concerns
Mold exposure can cause health problems. If you experience persistent respiratory issues, skin irritation, or allergic reactions, mold might be the culprit. This is especially true if these symptoms worsen after using the washing machine. Black mold can be particularly concerning. While it is rare for black mold to form inside washing machines, it is not impossible. If you suspect black mold, or if you have mold-related health sensitivities, a professional assessment is wise. They can confirm the type of mold and remove it safely. For more information on general mold removal and its impact, consider our guide on how to clean black mold off wood.
Appliance Malfunction
Sometimes, mold can contribute to appliance malfunction. A machine struggling to drain might have mold or debris in its pump or hoses. Strange noises or smells that do not go away might also signal deeper issues. If your DIY cleaning efforts do not resolve these problems, a technician can diagnose them. They can address both the mold issue and any underlying mechanical problems. They also know how to properly clean parts like the water inlet valve or specific filters, which you might not feel comfortable handling. See our articles on how to clean your washing machine water inlet valve or how to clean your Samsung washing machine filter on a top loader for more details.
Frequently Asked Questions
Is it safe to wash clothes if there is mold in the washing machine?
Washing clothes with mold in the machine is not recommended. Mold spores can transfer to your laundry. This makes your clothes smell musty. It can also cause skin irritation. Clean the machine thoroughly before washing any more clothes.
Can I use bleach for all types of washing machines?
Bleach is generally safe for most washing machines. However, always check your appliance manual first. Some manufacturers might advise against it. Never mix bleach with other cleaners like vinegar. This creates dangerous fumes. Use bleach cautiously and ventilate the area well.
How often should I clean my washing machine for mold prevention?
Clean your washing machine once a month to prevent mold. This includes wiping down the door gasket and running a hot cleaning cycle. For very humid environments or frequent use, consider cleaning every two to three weeks. Regular cleaning is key.
What causes the black mold in my washing machine gasket?
Black mold in the gasket typically grows due to trapped moisture and detergent residue. The dark, damp environment inside the folds of the gasket is ideal. Lint and dirt from clothes also provide food for the mold. Proper drying and wiping after each use prevent this.
Will running an empty hot cycle kill all mold?
An empty hot cycle with a cleaning agent like vinegar or bleach helps kill most mold spores. It flushes out residue. However, it may not remove visible mold stains or deeply embedded mold. Manual scrubbing of problem areas is often needed first.
Can mold in my washing machine affect my health?
Yes, mold can affect your health. Exposure to mold spores can cause allergic reactions. It can also cause respiratory problems, skin irritation, and watery eyes. People with asthma or mold allergies are more sensitive. Always address mold quickly to protect your health.
Conclusion
Cleaning mold from your washing machine is a vital task. It ensures your clothes are truly clean and fresh. We have covered the reasons mold grows and the specific steps for removal. Remember to always use the right tools and cleaning solutions. Whether you have a front-load or top-load machine, thorough cleaning of the gasket, dispenser, and drum is key.
More importantly, adopt preventative measures. Leaving the door ajar after each use is a simple but effective habit. Wiping down damp surfaces regularly prevents mold from taking hold. Using the correct amount of detergent also plays a big role. By following these steps, you can keep your washing machine mold-free. This ensures a healthier laundry environment for your home. Take action today to maintain a clean and odor-free washing machine. Your clothes will thank you for it.