Why is the dehumidifier blow hot air? In this article, we will look at the likely causes. Let’s get straight to the point. At best, we’ll install it once and then leave it; or better yet, just plug and play.
But if you notice that your dehumidifier blowing hot air, you must be wondering if this is a cause for concern? Could there be a hidden setting or additional feature that can be discovered and tweaked to make the instrument perform even better? Or is the unit defective and needs to be replaced?
Why is the dehumidifier blows hot air?
The dehumidifier blowing hot air because it passes through the reheat coil before entering the home. If your dehumidifier is blowing cold air, then it is defective! The dehumidifier removes warm air due to its dehumidification process.
When humid air enters the dehumidifier, it goes through a condensation process.
The refrigerant causes the moist air to condense too much, releasing small particles of water into the collection bucket. Cold air is additionally heated by the compressor and returned to the room. If your dehumidifier is blowing warm air that is above 90° F, the reasons could be.
The dehumidifier is set to ventilate, not dehumidify
Check your dehumidifier settings. If it’s set to a fan, that means it only blowing hot air from the room back into the room. That’s why you don’t feel any temperature change. A dehumidifier is designed to remove excess moisture from the air in your home. At the same time, it should also make the air a little cooler.
The solution is simply to turn on the dehumidifier to dehumidify and it will fix the situation soon.
Dryer overloaded
Dehumidifiers that are forced to operate continuously for more than 24 hours are at risk of overheating. Continuous operation may overload the motor, causing it to blowing hot air. As the dryer heats up, its components will be subject to excessive wear.
The dehumidifier can also overload if the humidity in your room is extremely high. This means that the device must work harder to reach the target humidity level.
In addition, room temperature can also be the reason why your dehumidifier blow hot air. In summer, electrical appliances can overheat quickly. For dehumidifiers, this means removing hotter air. To find out if your dehumidifier is overloaded, you need to touch its surface. If it’s too hot, it’s best to turn it off and let it cool down.
I also recommend reading: How you can get cool air from one room to another?
The tank is full
Small dehumidifiers have a reservoir that collects the water they extract from the air. Once the tank is full, the dehumidifier will stop sucking moisture from the air. The block continues to move air, but because it doesn’t remove moisture, the air stays hot rather than slightly cooled.
The solution is to simply empty the tank so that the dehumidifier can start removing moisture again and cool the air in the room again. You’ll be happy to know that you can use a water dryer for your plants.
Dehumidifier needs repair. The dehumidifier blows hot air
If the reservoir is not full and you are using the correct setting, your dehumidifier may need repair. Some parts are probably worn out and need to be replaced.
If the dehumidifier is a recent purchase, you can file a warranty claim with the seller or the manufacturer. Thus, your dehumidifier will be replaced or you will be refunded if the device is proven to be defective.
In addition, you should check for loose nuts, bolts, and screws that are causing your dehumidifier to malfunction. You should also check for a failed compressor, as this can cause hot air to escape from the dryer.
In general, if something is wrong with the device, you should check its physical condition. This should be done when the device is unplugged.
I also recommend reading – How much water should a dehumidifier collect in a day?
Coils are dirty
When your dehumidifier coils are too dirty, they can release too much heat into the room. Thus, you must check them out! Think about the last time you cleaned your dryer coils. If it’s been a while, well, they could be the reason of the dehumidifier blowing hot air.
There is no problem with dryers dehumidifier blowing warm air, but if it is too hot, check the coils. You can check the user manual that came with the device to find out how to clean them.
Dehumidifier oversized. The dehumidifier blows hot air
When buying a dehumidifier, it’s important to make sure it fits the size of your room. This way you will prevent overheating and blow hot air problems.
A dehumidifier that is too small for your room will force the motor to compensate.
Exposing the appliance to a load that exceeds its capacity can easily lead to overheating. You will notice that warm air comes out of it, which is usually accompanied by unusual engine sounds.
Another case is the dehumidifier is too big for your room. While this may seem like a good thing, too much block will result in excessively dry air. And because it is large, the dehumidifier will consume a lot of electricity. These two factors will cause the device to generate too much heat.
Dehumidifier defective
If the dehumidifier is faulty, you will get too much hot air. You cannot tell how an electronic device will behave when it is faulty. Thus, check for loose parts, bolts, and nuts and secure them. Also, check if the filters need to be changed or cleaned.
A broken compressor can cause serious problems with the device. You have to check everything. Anything that can go wrong will go wrong – check all the details.
What should I do if my dehumidifier is producing too much heat?
Removing moisture from the air can make your surroundings a little warmer than they used to be because we subjectively perceive the temperature of the environment.
There is a good saying: “It’s not the heat, it’s the humidity”; in this case, it is absolutely correct. A change in the humidity can make you feel a change in temperature, even if there wasn’t.
But if the exhaust air is really hot, it may mean that the dehumidifier has done its job and there is no more excess moisture in the air. When is it a cause for concern?
Check for strange sounds
Most dehumidifiers are designed to operate with virtually no noise. Changes in sound may indicate a malfunction. Noisy sounds can be caused by faulty compressors, loose fan motor mounting screws, etc. For example, a compressor has a thermostat that regulates its temperature.
When the heat increases, it automatically stops the compressor.
But, if the thermostat is faulty, the compressor continues to work under pressure and continues to release hot air with squeaky sounds. What can you do:
- Check for loose screws and tighten them.
- Call a service technician.
Dehumidifier needs rest
The easiest way to fix a dehumidifier overheating is to turn it off. Allow the dehumidifier to cool down so that it does not blow warm air. You should do this after 6-8 hours of device operation. Do not wait for the appliance to warm up before deciding to let it rest.
While you are letting the dryer cool down, you should also empty the tank. A quick check of the filters, compressor and other components will also identify problems before they become major problems.
If you urgently need to dehumidify a room without interruption, I recommend purchasing a second unit. Thus, two dehumidifiers can take turns removing moisture from the air.
Check the cooling and heating coils. The dehumidifier blows hot air
If your dehumidifier has been running for a long time, there is a high chance that the coils are dirty. Dirt can cause them to run under load, causing the coils to generate too much heat. What can you do:
- Refer to the manufacturer’s instructions for cleaning coils for steps.
- If you don’t have instructions, gently clean the coils with a brush and water.
- You can also use a vacuum cleaner to remove dirt particles.
In other cases, the coils may not work when the dryer is turned on. In this case, you need to purchase a new dehumidifier.
Dehumidifier needs repair. The dehumidifier blows hot air
If you suspect that your dehumidifier has faulty parts, you should seek professional repair. Manufacturers often have accredited stores to ensure that your warranty remains valid.
Keep in mind that postponing repairs will cause more damage to your device. In the long run, it will be cheaper to take advantage of minor repairs than to buy a new dehumidifier.
Incorrect humidity settings. The dehumidifier blows hot air
There is an ideal humidity setting for every room size. Like other electronics, dehumidifiers generate heat source when turned on. When placed in a small room, the dehumidifier may absorb too much moisture. Then, making the air too uncomfortable. A small dehumidifier in a large room can make it work under pressure. And this can lead to the release of too much heat.
Or, if your humidistat is set too low, the unit may be a dehumidifier blow hot air. What can you do?
Buy the right dehumidifier for your room. Also, please confirm the correct humidity setting for your room size before purchasing. As a general rule, your humidistat should be set between 30% and 50% RH (Relative Humidity). You can reduce the humidity level if you are still uncomfortable.
I also recommend reading – How much electricity does an air purifier use in different conditions?
Are the coolant levels correct? The dehumidifier blows hot air
If your dryer is clean, you should check the refrigerant level. Sometimes, leaks may not be noticeable until the leak no longer affects the operation of the dryer. I usually leave this part to the professionals. Checking the refrigerant level requires a special tool often used by heating and air conditioning manufacturers.
However, you can always recharge your frigidaire dehumidifier at home. Just make sure you are using the correct type of coolant your device uses.
Conclusion: The dehumidifier blows hot air?
The dehumidifier blows hot air? If the dryer blowing hot air, this is not a malfunction. Dehumidifiers work by drawing in a cool air conditioner and removing moisture from it before releasing it back out. Heat is naturally generated and constantly radiated as the device works to reduce the humidity in your surroundings.
However, if the dehumidifier blowing hot air, it could be due to several factors such as problems with electrical components, electrical issue, refrigerant leaks in the cooling system, or simply an indication that your device is nearing the end of its lifespan.
Before intervening, pay attention to how your dehumidifier works – touch it, listen, and move it a little. If there is moisture trapped, in all likelihood it is not broken.
On the other hand, if you find that your dehumidifier isn’t broken, it can produce hot air, but you’re unhappy with the amount of heat it generates, consider getting a portable air conditioner instead. It will work exactly the same!
FAQ: The dehumidifier blows hot air?
Should the air come out of a dehumidifier be hot or cold?
As a general rule, the air your dehumidifier blows should be warm, up to 90° F. Anything too warm or hotter than this should be a concern. Your dehumidifier may be overheating, overfilled, or have defective parts. However, don’t expect your dehumidifier to always blow out cool air.
Does a dehumidifier emit hot air?
Don’t worry! It is normal for the dehumidifier blowing hot air. But if it is blowing hot air coming too much hot air, use the user manual to find out. You can also call a technician to service your dehumidifier. Or buy a new unit to replace the broken one.
Thanks for your detailed article. I recently also encountered the problem of hot air from the dehumidifier. Thanks to your article, I was able to solve this problem.
You are welcome!