Asked by: Dorthe Lauroba
home and garden home appliances

Why is my dehumidifier blowing out cold air?

Last Updated: 30th March, 2021

First and foremost, dehumidifiers naturally produce heat. This generated heat will constantly radiate out as the unit draws moisture out of the air to lower the humidity. In fact, dehumidifiers that blow out cool air to lower the temperature are actually air conditioners!

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Besides, why does my dehumidifier ice up?

The most common cause of frost and ice buildup on a dehumidifier is because the unit is operating in temperatures that are too cold. There are some models made for cooler basements that operate down to temperatures of 36 degrees. Poor airflow, due to a dirty filter, also can cause freezing of the coils.

Subsequently, question is, does a dehumidifier warm the air? Dehumidifiers work much the same way as air conditioners, however unlike air conditioners, a dehumidifier does not cool the air. Instead, when the compressor inside a dehumidifier is working, it dries the air and releases it back into the room as heated air.

Just so, why is my dehumidifier running but not collecting water?

If your dehumidifier is no longer pulling water from the air and you have verified that the ambient room temperature is above 65 degrees Fahrenheit, then the unit's compressor may not be running. A common cause for the overload to fail is from operating the dehumidifier on long or undersized extension cords.

How does a dehumidifier cool a room?

Dehumidifiers remove moisture and humidity from the air. A small, automatic fan on one side of the machine sucks moist air in and then blows the air over two coils filled with refrigerants -- one hot, one cold. The cool and warm air meet, condensing water from the air.

Related Question Answers

Leidiane Rooijakker


How do I stop my dehumidifier from icing up?

For proper operation, a dehumidifier needs to have an adequate amount of air blowing across the evaporator and condenser coils to prevent frost or ice buildup. If you feel little or no air coming through the grille area and the filter is clean, then remove the cover and check the fan area.

Fateh Pallerola


When should I turn off my dehumidifier?

If temperatures get dangerously low, or if the room becomes too dry, turn off the dehumidifier. Some dehumidifiers allow you to set a humidity threshold, meaning that the device will automatically turn off if humidity levels reach a certain amount. If you can, set your minimum threshold at 30 percent.

Arwa Tatu


Should my dehumidifier has ice on the coils?

If your dehumidifier coils are freezing up and the surrounding temperature is over 65 degrees Fahrenheit, the fan motor may be the issue. This dehumidifier part facilitates the air flow necessary to keep the condenser coils from freezing up. Remove the fan cover and check for any signs of damage to the coils or fan.

Bladimir Valchikovski


How do I fix my dehumidifier?

How to Repair a Dehumidifier
  1. 1 Check the power.
  2. 2 Unplug the dehumidifier unit and check the power cord.
  3. 3 Remove the cover panel and look for ice.
  4. 4 Remove and test the overflow cutoff switch.
  5. 5 Remove the humidistat and check it.

Argider Celda


Arkadi Utdenwiede


What temperature should a dehumidifier be set at?

They prefer temperatures at or above 70 degrees Fahrenheit with a humidity of 75 to 80 percent. They die when the humidity falls below 50 percent. Knowing this, I recommend you keep your home's dehumidifier at no higher than 50%. Feel free to adjust it lower if needed.

Adrianne Borega


Where can I dispose of a dehumidifier?

How to Dispose of Dehumidifiers
  • Call your local household hazardous waste facility to see if they accept dehumidifiers.
  • Call your local department of sanitation office to schedule an appointment for the dehumidifier to be picked up or to have the Freon removed.
  • Place your dehumidifier by the curb the night before the scheduled appointment.

Afrika Delmotte


How do I know if my dehumidifier is working?

No air coming out when it's running. In every dehumidifier, there is a small fan that is in charge of pulling air from the air over the coils. If your unit is still working, but there is no air coming out of it, chances are the fan motor might be burned out and need a replacement.

Lech Estevoo


Is it safe to leave dehumidifier on all the time?

Having your dehumidifier running all night is safe and also a good idea if the relative humidity levels are high. High levels of humidity can affect your sleep in three primary ways, namely breathing, comfort, and allergies.

Iakes Escaño


Is it safe to run a dehumidifier constantly all the time?

With this assumption, you can safely run your dehumidifier for about 12 hours a day. That should (again, depending on your unit) run all the humid air in your space through the system at least once. I usually tell people to run their dehumidifier for 10-12 hours a day, and of course, the more the better.

Sulayman Olivieri


How much water should a dehumidifier collect in a day?

How much water does a typical dehumidifier extract per day? Most manufacturers love to make claims of 10 to 20 litres per day on most small domestic dehumidifiers and up to 50 litres on larger models. However, these figures are under extreme conditions such as 85% relative humidity at 30C.

Yani Bauschmid


Will a dehumidifier work in a cold room?

Be careful if you live in cold weather climates. Since the purpose of a dehumidifier is to attract moisture, the coils can possibly freeze if the weather gets too cold. However, in rooms that are above 60 degrees Fahrenheit, such as a heated basement and the like, a dehumidifier would work just fine.

Mildrey Sorni


Should I run a dehumidifier in the summer?

A dehumidifier can be used in both winter and summer. High humidity in the summer is bad for your health as much as the low humidity in the winter is. A dehumidifier is useful in winter, too, although it's due to a lack of humidity in the air. When it's cold outside and heat inside, it can make the air dry.

Jytte Luna


Do I need a dehumidifier in every room?

All in all, one dehumidifier is all that's needed for each area of your home such as basements and bedrooms as long as you buy the right capacity for the area and its humidity level.

Sunni Guembe


Should you run a dehumidifier and air conditioner at the same time?

Yes, unless you want faster dehumidification than either unit alone can provide. So, if you have a cold damp basement, some heating is good and you should run the dehumidifier only. If you have a hot humid room in the summer time, you should run the air conditioning because you want dehumidification and cooling.

Aurelija Queiro


Will a dehumidifier in the basement help the whole house?

The problem is that a dehumidifier ONLY addresses moisture that is evaporated into the basement. But the bulk of the moisture is coming from your basement walls and floor. It is ground water seeping through the concrete, which is very porous, and a dehumidifier alone won't help it.

Rozalina Leria


Should a dehumidifier be placed high or low?

In fact, the lower the unit is to the floor the better the convection circulation as hot air rises. The air that is put out by the dehumidifier will be warmer than the air going in so placing the unit too high near the ceiling will reduce this convection circulation.

Nastia Malillos


How do I cool my dehumidifier air?

Put simply, dehumidifiers work by using warm and cool coils to remove humidity. As a small fan draws in air from the rooms of your home, the air is passed over the two coils. The humid air meets the warm and the cool coils simultaneously, which causes a reaction that condenses the water from the air.