How to Clean Mold Out of Window AC Unit

Are you tired of dealing with moldy growth in your window AC unit? If you’re like most homeowners, the thought of having to clean out the mold from such a small and hard-to-reach area can be overwhelming. Fortunately, these step-by-step instructions on how to clean mold out of window ac unit will help make this daunting task much easier for you! 

How to Clean Mold Out of Window Ac Unit

With just a little bit of knowledge and some readily available supplies, you’ll not only be ensuring improved air quality in your home but also extending the life of your investment. Now let’s take a look at how to clean out that pesky mold once and for all!

Can Mold in Window Air Conditioner Make You Sick?

Mold can cause a variety of health problems, including allergic reactions and respiratory illnesses. People who are sensitive to mold or have existing health conditions may be at greater risk for experiencing symptoms from exposure to the mold found in window air conditioners. Common symptoms associated with indoor mold include sneezing, coughing, itchy eyes, and skin rashes. People with asthma may experience an exacerbation of their condition. If you have any health concerns, get medical advice tailored to your situation.

The presence of mold in a window air conditioning unit should be taken seriously as it can cause serious health problems for people who are exposed to it. To ensure that everyone in the house is safe from potential mold exposure, it is important to clean the window air conditioning unit regularly and thoroughly. Regular cleaning of your window air conditioner will help prevent mold build-up and potential mold-related health issues. Cleaning your unit involves a few simple steps. 

First, turn off your unit and unplug it. Next, check for any visible signs of mold on the window unit and its components. If you find any signs of mold, it is important to clean the affected areas immediately. Use a damp cloth or sponge with warm, soapy water or a mild detergent to remove any visible mold. Rinse with clear water to ensure all soap residue is removed. You may also need to use a disinfectant to ensure the mold is completely removed.

Ensure the Mold is Completely Removed

7 Methods on How to Clean Mold Out of Window AC Unit

1. Air Filters

One of the best ways to clean mold out of your window air unit is to change the air filters regularly. Air filters help to remove mold spores and other allergens from the air, which can help to improve indoor air quality. It is important to change your air filters every few months or as often as recommended by the manufacturer.

If you notice that your air filter is dirty or clogged, then you should replace it as soon as possible. However, be sure never to use a vacuum cleaner or other abrasive cleaning materials since they may damage the air filter.

2. Cleaning the Coils

Another way to clean mold out of your window air unit is to clean the coils. The coils are located behind the front panel of the unit and can become covered in dust and dirt over time. When the coils are dirty, they cannot effectively remove heat from the air, which can cause the unit to work harder and use more energy. To clean the coils, simply remove the front panel of the unit and wipe them down with a damp cloth.

3. Cleaning the Drain Pan

The drain pan is located under the coils and collects water that condenses on them. If mold or mildew begins to grow in the drain pan, it can spread to other parts of the unit. To clean the drain pan, simply remove it from the unit and wash it with warm soapy water. Make sure to scrub any areas that have visible mold growth. Once the pan is clean, dry it completely and reinstall it into the unit. Make sure to check the drain pan regularly for mold buildup.

Drain Pan is Located Under the Coils

4. Wiping Down Surfaces

Another way to clean mold out of your window air unit is to wipe down all of the surfaces with a damp cloth. Be sure to wipe down both the inside and outside of the unit, as well as any exposed coils or other parts. Remove any debris or dirt that may have been collected in the unit. Then, spray a mold and mildew remover onto the surfaces of the air unit. Let the solution sit for a few minutes before wiping it down. 

This will help to eliminate any remaining mold spores and prevent them from growing back again. Finally, dry the surfaces with a clean cloth. This will help to ensure that all of the moisture has been eliminated. Doing this regularly can be a great way to keep your window air unit clean and free of mold.

5. Vacuuming

Vacuuming is another effective way to remove mold spores from your window air unit. Be sure to vacuum both the inside and outside of the unit, as well as any exposed coils or other parts. It is also important to vacuum any surrounding areas, such as carpets or furniture, as mold spores can easily spread through these areas. Vacuuming is the best way to remove any debris or dirt that can harbor mold growth. If possible, use a HEPA filter vacuum to ensure all mold spores are completely removed.

6. Disinfecting

After you have removed all visible mold growth from your window air unit, it is important to disinfect all surfaces to prevent further growth. You can use a commercial disinfectant or a solution of 1 part bleach to 10 parts water. Be sure to follow all manufacturer’s instructions when using bleach or any other cleaning products.

Spray the solution onto hard surfaces and allow it to sit for 10 minutes before wiping. Make sure you get into all nooks and crannies and keep the area well-ventilated while cleaning. After the disinfecting process is finished, rinse all surfaces with water and dry thoroughly.

7. Removing Moisture

Mold requires moisture in order to grow, so one of the best ways to prevent it from growing back is to remove any sources of moisture from your window air unit. To do this, you will need to make sure that there are no water leaks within the unit and that you empty the drain pan regularly. Additionally, you can invest in a dehumidifier to help reduce the moisture levels within your home. This will help to lower the humidity and make it harder for mold spores to thrive.

You Can Invest in a Dehumidifier

By following these steps, you can easily clean mold out of your window air unit and keep it free from any future growth. Regular maintenance is key to keeping your air conditioner running efficiently and preventing costly repairs caused by mold buildup. Make sure to check your unit regularly and take action immediately if you notice any signs of mold or mildew growth. With the right cleaning methods, you can keep your window air unit fresh and free of unwanted guests!

Things to Consider When Cleaning Mold Out of Window AC Unit

1. Safety:

Be sure to wear protective gear such as gloves, goggles, and a respirator or face mask when cleaning mold out of your window AC unit. This will help prevent you from inhaling any mold spores during the process. Additionally, make sure to open all windows and turn on fans to ventilate the area before beginning your cleaning process.

2. Cleaning Solution:

When cleaning mold out of your window AC unit, it’s important to use a mild detergent that is safe for indoor use. Avoid abrasive cleaners or bleach as these can cause damage to the surfaces of your window AC unit. Before applying the solution, check for any manufacturer instructions that may be included with your AC unit for specific cleaning recommendations.

3. Drying:

Once you have removed all visible signs of mold from your window AC unit, it’s important to thoroughly dry the area with a cloth or towel. This will help prevent any residual moisture from feeding other mold spores that are present in your home. Additionally, it’s a good idea to leave the window open while running your AC unit to ensure that it stays dry and free of mold.

Dry the Area With a Cloth

Following these steps will help you effectively clean mold out of your window AC unit and ensure that it continues to run efficiently. If you have any concerns or questions about the process, be sure to consult a professional before beginning the cleaning process.


Keep your window AC unit mold-free by regularly cleaning it and taking preventive measures. Clean the unit every month, remove the cover, and clean the inside and outside of the coils. In addition, keep drains clear, so mold doesn’t have a chance to grow, and reduce indoor humidity. By following these steps on how to clean mold out of window ac unit, you can prevent mold from growing in your window AC unit and keep it running smoothly for years to come.

Jennifer Branett
We will be happy to hear your thoughts

Leave a reply

DIY Quickly