You habitually reached into the fridge for food, opened the fridge door, and found condensation in the fridge. It has formed:

– on the back wall;
– on the shelves;
– under the fruit and vegetable drawers;
– Or on the produce.
The causes of condensation are divided into three classes: when it is the norm, when condensation is due to a violation of the rules of operation of the equipment, and when condensation accumulates due to a breakdown. What to do in each of these situations, we will talk about in this article.

What is the danger of condensation in the refrigerator?
A large amount of condensation in the refrigerator compartment increases the humidity inside the chamber and has a negative impact on the products located in it. This environment promotes the reproduction of microorganisms and the appearance of mold. Therefore, it is important to distinguish situations when condensation in the refrigerator is the norm and when it should not be.

When condensation is normal refrigerator operation
In refrigerators with a droplet defrosting refrigerator chamber evaporator condensation on the back wall is not a breakdown, but the principle of operation of the equipment provided by the manufacturer. Here is how it works.

Behind the back wall in the refrigerator compartment is the evaporator. During the chamber cooling cycle, light frost forms on the evaporator and back wall. As the chamber reaches the set temperature (+4°C to +8°C), the cooling is turned off and the back wall temperature rises, tending to the temperature in the chamber. As a result, the resulting frost melts, turns into small water droplets, flows down the back wall into the drain hole, and then through the drain hose into the condensate collection tray on or near the compressor. The compressor motor heats up and evaporates moisture from the pan during operation.

Note: The refrigerator type with a drip defrost in the refrigerator compartment is also called a “weeping” evaporator refrigerator. Because the condensation droplets on the back wall are very similar to tears
When condensation is caused by improper operation
The refrigerator is a complex technique, and in order for it to work flawlessly, it is necessary to strictly follow the rules of operation described in the manual. Their violation leads to incorrect operation of the refrigerator and can lead to a breakdown. Here are the violations that cause condensation on the food, walls, and shelves of your refrigerator.

Forgot to close the fridge door
Most refrigerators beep if the refrigerator door is open for a long time. But there are some models that do not have an audible alarm. With these refrigerators, you will only know that you forgot to close the door the next time you open it.

An open door causes warm air to enter the refrigerator compartment and condense. Moisture collects on cold shelves, walls, and even food in the chamber.

Improper installation
If your refrigerator is tilted forward, the refrigerator compartment door can open on its own (especially if you didn’t close it tightly!) and warm air from the room will enter the chamber. The moisture in the warm air will be released as condensation on the walls, shelves, dishes, food, and so on inside the refrigerator.

Storing liquid foods without a lid
Vapors of soup, compote and other liquid substances will settle as condensate on the walls and shelves in the refrigerator compartment.

Putting hot food in the refrigerator
This causes the air in the refrigerator compartment to heat up and immediately condense on the cold items around it.

Possible breakdowns
Although condensation is not usually associated with refrigerator malfunction, malfunctions do sometimes occur. Here are the most common ones from our experience.

Clogged drain duct in the refrigerator compartment
Condensation that forms on the back wall inside a refrigerator with a drip defrost drains into the drain hole and enters the condensate collection tray through the drain tube. If the channel is clogged, the water flows to the bottom of the refrigerator compartment under the fruit and vegetable drawers.

Damaged rubber door seal
Over time, the door seal wears out, is pressed or mechanically damaged, and warm air enters the refrigerator compartment. This causes condensation.

Loose hinges.
This causes warm air to rush into the oven and condensate to form.

The hinges are loose.
This causes warm air to enter the chamber and condensation to form.

The fastening points of the hinges to the refrigerator body are loose
As a result, the door is warped, and warm air flows into the refrigerating compartment and condenses inside the refrigerating chamber.

The temperature sensor is defective
Therefore, the cooling of the fridge compartment is switched off later than it should. As a result, the refrigerating compartment freezes heavily, a layer of ice has formed on the back “weeping” wall, also the drainage channel has frozen over.

While the compressor is resting, the snow coat on the back wall melts and a lot of water is formed. Because the refrigerator drain has frozen over, water drains under the fruit and vegetable drawers.

Can’t get rid of condensation in your refrigerator? Call SAN DIEGO APPLIANCE REPAIR or book your service.

We will consult you and if necessary we will send you a master who will repair the damage at home on the day of treatment or at any time convenient for you.


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(619) 928-5000
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