How to Clean Dehumidifier Coils – The Easiest Way To Get This Job Done

Cleaning dehumidifier coils is a simple process that will not only help your dehumidifier work more efficiently but will also extend the life of the appliance. 

There are many benefits to cleaning your coils regularly. None of us want our house or office to become infested with mold and mildew, which is where you find it most often.

This blog post tells you how to clean those pesky coils so that they don't need replacing!

The Benefits of Cleaning Your Dehumidifier Coils

Many dehumidifier owners clean their devices at least once a year but skip the coils. If you've never cleaned the coils, you are missing out on several benefits.

By cleaning dehumidifier coils in a regular basis, you'll be prolonging the life of your dehumidifier, saving money in repair costs, getting a better quality performance and more.

Here are the 5 main benefits of cleaning the coils:

how to clean dehumidifier coils
  • Increase in energy efficiency - the coils will remove moisture from your air more efficiently if they are clean and free of debris. This results in less strain on your dehumidifier which means it uses up less power, saving you money over time!   
  • Better quality humidity control – with a clog-free coil, you can get more accurate humidity readings and control in your home. An unclogged coil means that the humidistat will be able to maintain a better relative humidity, resulting in less mold growing inside of your ducts and reducing "musty" odors!
  • Cleaner air - if you have allergies or asthma, then having clean coils is a must. Having a clean coil means that you are not breathing in any dust or debris, which could induce an asthma attack!
  • Cleaner appliances - over time, the coils will gather dirt and bacteria. This can then build up onto your other components of your dehumidifier such as the fan assembly. Keeping those components clean also ensures they are working at their highest efficiency.
  • Increase in lifespan - just like everything else, your coils will wear out over time. By cleaning them regularly you are ensuring that the appliance doesn't have to work as hard or for as long, resulting in a longer life!

How to Clean Dehumidifier Coils in 5 Simple Steps

It can be a little daunting when it comes to cleaning the coils in your dehumidifier, but it is actually very easy!

All you need is some basic tools and products that are easily found at any hardware & grocery store. The most important thing with this process is safety - working on anything electrical should always have an adult present for supervision.

What You Will Need:

  • Non-toxic dishwasher detergent
  • An old toothbrush
  • A rag
  • A screwdriver (to remove dehumidifier parts)

Step 1: the first thing you want to do is turn off your appliance and unplug it from the wall.

Step 2: take a screwdriver and carefully remove the back panel of your dehumidifier which will expose the coils. You can then unscrew them with an adjustable wrench or pliers if they are too tight to pop right off.

dehumidifier coil cleaning

via Reddit

Now you are ready to clean!

Step 3: to clean your coils, take them outside and spray with a hose. Use dish soap (the non-toxic kind) and scrub the dirt off of each coil with a toothbrush or rag.

Once all the gunk is gone from both coils, then take a rag and wipe down each one to get rid of any excess dirt or debris.

Step 4: rinse the coils again with the hose and then let them dry for a few hours before replacing them in your dehumidifier. Now you can put the coils back in place by screwing them on tightly with your adjustable wrench.

Just make sure that they are secure before putting the panel back up! You don't want anything falling apart while it's running...that would be bad!

Step 5: now you can plug your dehumidifier back in and resume using it. Your coils will work better than ever before, meaning that all the moisture will go into collecting water instead of gathering dust on the inside of your appliance.

You'll save money by spending a little bit time cleaning this easy-to-reach spot - everyone wins!

How Often Should I Clean My Dehumidifier Coils?

You can choose how frequently you want to clean the coils. For those with allergies or asthma especially, we recommend cleaning at least once a month. However, if these conditions do not apply to you, then cleaning every three months should suffice.

Once a year is the best time to do this job! You could schedule it to coincide with your annual checkup from your HVAC professional so that any other issues can be addressed while they are at your home or office.

Final Thoughts

Cleaning your dehumidifier coils on a regular basis is an easy way to save money, extend the life of your appliance and improve air quality. It's not as hard or daunting as it may seem at first!

You can use the steps above to ensure your dehumidifier is always in good working condition. If you have any question, feel free to leave a comment below.

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My name is Justin Williams. I am the founder and blogger at (read more about us). I was an allergy sufferer and that is also the reason why I began my trek to finding the best dehumidifier for my own personal health issues. All of the dehumidifier top picks on the site were put through their paces by Lance Perez - our dehumidifier researcher. He put each one through a series of tests to see how well they performed. Then, our editorial team compiled the insights into articles and published them.

1 thought on “How to Clean Dehumidifier Coils – The Easiest Way To Get This Job Done”

  1. Thanks for sharing. Using a coil cleaning solution will remove grime from the coils of your dehumidifier. A detergent-based spray cleaner will work for most purposes. Some AC coil cleaners don’t need rinsing after using them– but it’s still a good idea to wipe off as much cleaner as possible.

    Albert | FDP Mold Remediation


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