Why is there frost in my no frost fridge?

After buying a no frost fridge paying more than the frost model demanded when I saw frost in my no frost fridge, it made me wonder why is there frost in my no frost fridge?

I did some research on it and here are my findings to help you find what is causing frost in your no frost fridge.

Sometimes ice frost on the wall of no frost fridge. It is really disturbing for the consumers of no frost fridge. We are paying a higher price for a no frost model than the frost one and we don’t expect such a problem to occur. Generally, no frost fridges meet the consumer’s expectation by preventing ice frost. Yet, sometimes ice may frost in a no frost fridge.

The air contains water in the form of vapor. This water condenses as the temperature falls. At chilling temperature inside the fridge, the water frosts, and deposits as ice on the walls of the cabin of the fridge. 

One of the main causes of frosting ice in no frost fridge depends on the user’s behavior. If you are opening the door of your refrigerator frequently, then the moist air that gets into the fridge every time the door is opened creates frost.

High humidity creates frost

The area you are living in plays an important role in this process. If the humidity of the air is high, the process accelerates as there is more water vapor present in the air.

Faulty door sealing

Other reasons behind frost in a no frost fridge could involve a faulty door sealing. If the doors of the fridge are not closed properly, the air could pass through the door. The water vapor of air then creates frost in the no frost fridge.

Faulty door sealing may cause other problems as well. The temperature of the cabin could not be maintained properly due to it. The compressor goes crazy to bring down the temperature and runs continuously. It reduces the energy efficiency and lifetime of the compressor. 

If all of a sudden, you are observing ice frost in your no frost fridge or noticing any irregularity in the compressor’s operation, check the sealing is proper or not. It is common to see such a problem after you deep clean the fridge. Because the gasket you removed for cleaning may not be put back in place properly. 

Keeping the door open for long

Another reason for the frost in a no frost fridge is accidentally keeping the door open for long or if the door is not closed properly. 

Same as faulty sealing, this reason reduces the energy efficiency of the refrigerator. It is thus important for the refrigerator to have a faulty door closing alarm. The refrigerator that comes with this feature beeps if the door is open for a long time to warn the user of the open door.   

Keeping the door open for long

Some of us are used to stand in front of the open door of the refrigerator and stare at the foods thinking which one to pick. I am one of them. For the refrigerator, it is not a good practice.

The cool air gets out of the refrigerator and outer air gets in every time the door is opened. If it is kept open for a longer period, the temperature of the fridge increases to the outside temperature. The energy efficiency decreases and as the compressor has to overperform to bring the temperature down quickly, its performance decreases. 

The outer air could also create frost in the no frost fridge. 

Aging effect of no frost fridge

A no frost fridge prevents the formation of ice from the moisture of outside air. No frost fridge comes with ventilation and air treatment technique which makes the cooling using dry air. The moisture is filtered and water is drained outside the fridge. 

The drained water evaporates naturally in the air, that’s why you may not notice the water. 

Due to aging, the performance of the air treatment devices may decrease causing ice to frost inside no frost fridge. 


Moisture is the main cause of the formation of ice on the walls of the fridge. The air contains water in the form of vapor. When chilled, these vapor condenses to water and deposits on the wall of the fridge. Water on the wall then turns into ice at freezing temperature. 

Opening the door of the fridge frequently makes the outside air get into the fridge. If the door sealing is not proper and the fridge is not completely airtight, air will flow in and out of the fridge. Keeping the door of the fridge open for a longer time or the door is not properly closed, the temperature will increase inside the fridge and outside air will get inside the fridge. All these reasons are responsible for the build-up of frost in a no frost fridge. If the fridge is an old one, the process of frosting may get accelerated. 

All these reasons also impact the energy efficiency of the fridge. As the compressor has to run continuously to bring down the temperature. 

Over performance of the compressor also reduces its performance and longevity. 

After taking care of all these reasons, if you are still seeing frost in your no frost fridge, then there may be any technical fault in your fridge. In that case, I will recommend you to take help from a technician. If your fridge is a new one and the warranty is still left, then you can contact the service center of your refrigerator’s brand.     

6 thoughts on “Why is there frost in my no frost fridge?”

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