How to Clean a Dehumidifier

How to Clean a Dehumidifier: A Step-by-Step Guide

Learn how to clean a dehumidifier efficiently with our comprehensive guide. Prevent mold and mildew buildup, prolong the life of your unit, and maintain high air quality with these expert tips.

The two things that no homeowner wants to see in the house are humidity and dampness. Because mold and mildew find water as a cradle for them, posing grave health issues, if left unchecked. Therefore, keeping your dehumidifier clean is essential for ensuring it operates efficiently and maintains high air quality in your home. Regular maintenance can prevent mold and mildew buildup, prolong the life of your unit, and keep your indoor environment healthy. In this blog, we'll guide you through the process of how to clean a dehumidifier, including cleaning the filter, coils, and bucket. We'll also share some pro tips for how to clean dehumidifier that will help you get the best results.

Why Cleaning Your Dehumidifier is Important?

Regularly cleaning your dehumidifier is crucial for several reasons. It helps prevent mold and mildew from developing inside the unit, which can compromise the air quality in your home. Clean components ensure that the dehumidifier runs efficiently, saving you energy and reducing utility bills. Furthermore, regular maintenance extends the lifespan of your dehumidifier, protecting your investment and ensuring it continues to work effectively for years.

Tools and Supplies Needed for Cleaning

Before you begin the cleaning process, gather the necessary tools and supplies to ensure a thorough job:

List of Essential Tools

Soft Cloth: For wiping down surfaces and components.

Brush: A soft-bristled brush is ideal for cleaning tight spaces and delicate parts.

Mild Detergent: Use a gentle detergent to avoid damaging the unit’s components.

Water: Necessary for rinsing parts and diluting cleaning solutions.

Vacuum Cleaner: A vacuum with a brush attachment can help remove dust from hard-to-reach areas.

Recommended Cleaning Solutions

When choosing cleaning solutions, opt for products that are non-abrasive and designed for electronic appliances. Avoid harsh chemicals that could damage the dehumidifier’s surfaces and components.

Pro Tip: Always use non-abrasive tools and gentle cleaning solutions to avoid damaging your dehumidifier. Regular maintenance with the right tools and products will keep your unit running efficiently and extend its lifespan.

How to Clean a Dehumidifier Filter

Importance of Cleaning the Filter

Cleaning the dehumidifier filter is crucial for maintaining the unit’s efficiency and ensuring it provides clean air. A clogged filter restricts airflow, forcing the dehumidifier to work harder, which can lead to higher energy consumption and reduced lifespan. Cleaning a dehumidifier filter regularly prevents dust and allergens from circulating back into the air, promoting a healthier indoor environment.

Step-by-Step Instructions:

Turn Off and Unplug the Dehumidifier: Before you start cleaning, ensure the dehumidifier is turned off and unplugged to prevent any electrical accidents.

Remove the Filter: Locate the filter, which is usually situated at the front, back, or side of the unit. Refer to the user manual if needed.

Rinse the Filter Under Running Water: Use lukewarm water to rinse the filter thoroughly. This helps remove dust and debris that have accumulated over time.

Use Mild Detergent for Stubborn Dirt: If the filter has stubborn dirt or grime, apply a small amount of mild detergent and gently scrub it with a soft brush.

Let the Filter Dry Completely Before Reinstalling: Ensure the filter is completely dry before putting it back into the dehumidifier to prevent mold growth.

Pro Tip: Clean the filter every two weeks for optimal performance. This regular maintenance ensures your dehumidifier operates efficiently and extends its lifespan.

How to Clean a Dehumidifier Coil

Importance of Clean Coils

Clean dehumidifier coils are essential for efficient operation. Dust and debris on the coils can impede the heat exchange process, causing the unit to work harder and use more energy. Over time, this can lead to increased wear and tear, higher electricity bills, and reduced dehumidification efficiency. Therefore, cleaning dehumidifier coils regularly helps maintain optimal performance and prevents potential issues such as frost buildup. Now here comes the question but how to clean a dehumidifier coil. Below is the answer.

Step-by-Step Instructions:

Turn Off and Unplug the Dehumidifier: Safety first! Make sure the unit is turned off and unplugged before starting the cleaning process.

Remove the Front or Back Panel to Access the Coils: Depending on the model, you may need to unscrew and remove a panel to reach the coils. Refer to the user manual for guidance.

Use a Soft Brush to Remove Dust and Debris: Gently brush away any dust and debris from the coils. Be careful not to damage the delicate fins of the coils.

Apply a Coil Cleaner and Let It Sit for the Recommended Time: Use a specially formulated coil cleaner, following the instructions on the product. This helps dissolve any stubborn dirt or buildup on the coils.

Rinse with Water and Let Dry: If the coil cleaner requires rinsing, carefully rinse the coils with water. Make sure the coils are completely dry before reassembling the unit to avoid any electrical issues.

Pro Tip: Cleaning dehumidifier coils regularly can prevent frost buildup and improve the efficiency of your dehumidifier. Aim to clean the coils at least once every three months, or more frequently if you use the dehumidifier often. This maintenance step is crucial for ensuring your dehumidifier operates at peak performance, providing you with a comfortable and healthy indoor environment.

How to Clean Dehumidifier Bucket

Importance of a Clean Bucket

‘How to clean a dehumidifier bucket’ is as important a questions as for coils and filters. Keeping the dehumidifier bucket clean is crucial for preventing mold and mildew growth. A dirty bucket can become a breeding ground for bacteria and mold, which can then spread throughout your home, affecting indoor air quality and potentially causing health issues. Regular cleaning ensures that your dehumidifier operates efficiently and maintains a healthy environment.

Step-by-Step Instructions:

Turn Off and Unplug the Dehumidifier: Always start by turning off and unplugging the dehumidifier to ensure safety.

Remove the Bucket and Empty Any Remaining Water: Carefully remove the bucket from the dehumidifier and dispose of any water inside.

Use a Mild Detergent and Warm Water to Scrub the Inside of the Bucket: Use a soft cloth or sponge with mild detergent and warm water to thoroughly scrub the inside of the bucket, paying special attention to any corners and crevices.

Rinse Thoroughly and Dry Completely Before Reinstalling: Rinse the bucket with clean water to remove any soap residue. Ensure the bucket is completely dry before placing it back into the dehumidifier to prevent mold growth.

Pro Tip: Clean the bucket once a week to prevent mold and mildew growth. Regular maintenance keeps the bucket and dehumidifier in optimal condition, ensuring they function effectively.

Cleaning the Exterior and Other Components

Wiping Down the Exterior

Regularly wiping down the exterior of your dehumidifier helps maintain its appearance and performance. Use a damp cloth to gently clean the surface, removing dust and grime.

Cleaning the Vents and Grills

Dust and debris can accumulate in the vents and grills of your dehumidifier, affecting airflow and efficiency. Use a soft brush or vacuum cleaner with a brush attachment to clean these areas. Ensure all vents are clear to maintain optimal airflow.

Checking and Cleaning the Drain Hose (If Applicable)

If your dehumidifier has a drain hose, it’s important to check and clean it regularly to prevent clogs and ensure smooth operation. Detach the hose and flush it with water to remove any buildup.

Pro Tip: Regularly dusting and wiping down your dehumidifier helps maintain its appearance and performance. Keeping all components clean ensures efficient operation and extends the life of your dehumidifier.

Maintaining Your Crawl Space Dehumidifier

Specific Tips for Maintaining a Crawl Space Dehumidifier

To ensure your crawl space dehumidifier operates at its best, follow these specific maintenance tips:

Keep the Crawl Space Dry and Clean: Regularly inspect your crawl space for any signs of moisture or leaks. Address these issues promptly to maintain a dry environment.

Recommended Cleaning Schedule: Clean the filter every two weeks, the coils every three months, and the bucket weekly. Regular cleaning prevents buildup and ensures efficient operation.

Use a Hygrometer: Monitor humidity levels in your crawl space with a Hygrometer. Adjust the dehumidifier settings as needed to maintain optimal humidity levels.


Regular cleaning and maintenance of your dehumidifier are essential for its longevity and efficiency. This guide is a comprehensive answer to ‘how to clean dehumidifiers’. By following these steps, you can ensure your dehumidifier continues to provide a healthy, comfortable environment in your home.

Ready to Keep Your Dehumidifier as Efficient as Possible?

Visit Abestorm to explore our range of high-quality dehumidifiers and find more maintenance tips. For personalized advice and support, contact Abestorm today. Let us help you keep your home healthy and comfortable with the best dehumidifiers on the market.

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