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Why Is My Dehumidifier Blowing Hot Air?

Why Is My Dehumidifier Blowing Hot Air?

Have you noticed that your dehumidifier is producing heat and it has made you wonder “why is my dehumidifier blowing hot air?” Well, we have included some common causes in this article that will provide an answer to your query of why is my dehumidifier blowing hot air. 

Dehumidifiers play an essential role when it comes to maintaining a comfortable living environment in the home. After all, a dehumidifier not only lowers humidity levels but also makes the home inhospitable for the growth of dust mites and mold.

A dehumidifier also makes the home feel a bit cooler when it is really hot and humid. Normally, you just set up the machine, turn it on, and let it do the work. However, if you notice that the machine is producing heat then it can be a cause for concern.

Sometimes, blowing hot air is not a sign of malfunction. If the hot air is near the room temperature or a bit warmer than it, then there is no need to worry. However, if the hot air becomes warmer with time, it is best to have a professional look at it. 

So, why is my dehumidifier blowing hot air? Well, keep on reading as we will take a look at common causes behind it.

Why Your Dehumidifier is Producing Heat?

You need to understand that it is normal for a dehumidifier to produce heat. It is because the heat comes out of the machine as it draws in moisture from the air to lower the humidity level. 

If you take a look at how a dehumidifier works, you will find that it simply draws in the air inside the home and then runs it across coils to condense moisture which is later collected in a storage tank or bucket attached to a dehumidifier. Naturally, the exhaust air is warmer as it exits the machine.

So if you don’t vent the warm air outside, your dehumidifier will keep on generating heat and blowing it back into the room. After all, your dehumidifier is not an air conditioner. Therefore, it is safe to say that your unit will continue to generate warm air and radiate it out.

But Why Your Dehumidifier is Producing Too Much Heat?

There are some common causes behind your machine blowing out much hotter air than normal. Let’s have a look at each of those causes:

There Can Be An Overheating Issue

Overheating is actually one of the primary reasons why dehumidifiers pose a fire risk. As a majority of these machines are designed in a way that they can work normally at a room temperature of 60-65°F or above, the compressor can overheat if the temperature falls below it and the coil freeze up. 

Although there are models that can operate to even 45°F, overheating could be one of the reasons why your dehumidifier is blowing out hot air. If you notice any smell or anything unusual, quickly turn off the unit and call in a professional to check it as an overheating dehumidifier poses a fire risk.

Is Your Dehumidifier Running in Fan Mode?

If your home becomes too hot and the dehumidifier is running on fan mode then it will start to generate more heat than usual. In case you have not set the machine to dehumidify, simply turn it off and then change the settings. Another reason why the machine starts to run in fan mode is that it acts as an indication that you need to empty the water reservoir.

So, if the water reservoir is full then the unit won’t dehumidify anymore as it may lead to leakage of water. Therefore, it starts to run on fan mode. You can fix this little problem by emptying the bucket and resetting the machine.

There Can Be Lack of Airflow

If there is insufficient airflow then the air around the machine starts to get colder and it can cause the moisture on the machine to freeze. Moreover, the motor starts to get hot if there is insufficient incoming air. It could be due to a dirty air filter or you may have unintentionally blocked the unit’s airflow by placing it next to the wall or furniture.

In many cases, a clogged air filter is a culprit behind hot air coming out of a dehumidifier. So, make sure to clean or replace the air filter as not doing it may lead to more costly fixes in the near future or even overheating which poses a serious fire risk.

The Dehumidifier Randomly Shuts Off

The unit is supposed to run quietly and normally you hear a hum of the compressor. If you notice that the sound of hum stops all of a sudden then it might be due to an issue with the circuit board or the humidity sensor. If the display is not working properly then it might be due to a malfunctioning circuit board.    

If there is a clicking sound or a buzzing sound that comes out of the unit after every few seconds or minutes, then it could be due to a malfunctioning compressor. And another issue could be with the cooling coils. In case of a refrigerant leak, the cooling coils will stop getting cold. If that is the case, it is best to contact a professional to take a look at it.

The Bottom Line on Why Is My Dehumidifier Blowing Hot Air

Well, now you know that it is normal for a dehumidifier to produce heat under normal circumstances. However, if you notice that the unit is producing much hotter air, then it is time to take the help of HVAC Freelancer. Here, we have a huge network of some of the most experienced and professional technicians. 

All you have to do is post a job on our platform and choose the professional near the area you live. Please let us know if you have any other queries related to “why is my dehumidifier blowing hot air.” Take care and have a great day.