Why Does My Mini Fridge Freeze Everything? (What Can You Do?)


Disclosure: We may get commissions for purchases made through links in this post.

Ice buildup in a mini-fridge can be annoying. There are a few reasons why this could be happening. The refrigerator may not be getting enough ventilation and airflow to keep it at the right temperature. Luckily, there are ways to fight back.

There are many reasons why a mini fridge can be freezing. Most commonly, the culprit is poor insulation, which causes excess heat to build up inside it throughout the day and which once again raises its temperature again at night.

However, there are also other factors you should consider when trying to determine why your refrigerator has stopped working appropriately. So let’s take a look at why your mini-fridge might be freezing and some things you can do about it.


Why Does My Mini Fridge Freeze Everything?

There are two main things that affect how cold or frozen your freezer will get: insulation and air circulation, which can also be described as energy efficiency in general.

Mini fridges are designed to be used in a warmer climate so they produce a lot of heat and as a result, tend to encase everything inside the tiny chamber in ice.

This is because, unlike a full-sized fridge with fans and vents that keep cool air flowing around, the space inside mini fridges is completely enclosed so the heat has nowhere to escape and excess ice build-up happens. The other issue you’ll have to contend with is making sure your mini-fridge is at the right temperature.


How Do I Stop My Mini Fridge from Freezing?

Many people don’t know that over time mini-fridge compartments can build up a thin sheet of ice. The ice sheet seals your food in a block of ice, which keeps out the cold air needed to keep your food fresh. If that’s happening in your fridge, then it’s time to stop ice buildup in your mini-fridge!

Your fridge is freezing everything because it’s old, because the thermostat failed, or because the thing is just flat-out broken. Let’s see what we can do about that!

Here are some tips from appliance experts on how to stop your freezer from freezing everything and how to fix your mini-fridge if it keeps freezing everything:

Check for a thermostat

The temperature on the thermostat might be too low. Adjust the thermostat to a warmer setting so it won’t freeze everything.

The thermistor is the most common sensor in a refrigerator. It measures the temperature inside and adjusts the cooling system accordingly.

If the thermistor is bad, it may be causing the compressor to kick on too frequently or too long, causing over-freezing throughout the interior of the refrigerator. A defective thermistor can also indicate a problem with other sensors (like a bad door gasket).

Check for clogged vents

Ice buildup happens when warm air flows over cold coils, causing moisture in the air to freeze. If there’s ice buildup on the coils, there might be a clog elsewhere in the vents causing this to happen. Check the vents and make sure they’re not clogged with dust or debris.

As an extra precaution, you can run a blast of hot air into your freezer every few months using an air compressor or hairdryer. This will warm up the coils and clear out all the excess moisture that’s built up over time.

Clean all parts of your mini-fridge regularly

If you think that the frost buildup is due to moistures from ice cream, fruits, or other foods that you store inside your mini-fridge. So make sure you clean your fridge regularly and also keep food away from the vents.


How Do You Fix a Refrigerator That Freezes Everything?

Check the settings on your refrigerator and make sure everything is turned on, including the freezer section. If all else fails, try unplugging your refrigerator for a few minutes and then plugging it back in again. This will reset it, allowing it to begin working normally again.

You’ve seen it a million times. A new mini-fridge is delivered and plugged in. The contents are cold, but only for a few hours. Then it starts to freeze things again.

What’s happening? Well, the refrigeration cycle begins with the compression of gas. In an old-fashioned refrigerator, this was done mechanically by a motor, which had the side effect of moving heat from the inside of the refrigerator to the outside.

The compressor in your mini-fridge is an electric motor that has been modified to reverse its function and move heat from the outside to the inside (it’s more complicated than that, but that’s basically how it works).

The problem here is that the cold air isn’t being properly distributed throughout the refrigerator. Something is restricting airflow, so the cool air ends up piled at one end. That something is most likely ice.

  • If a refrigerator is not working properly, and everything inside freezes, the first thing to do is to check the door. The hinges must be tight and the door must close completely when it is shut.
  • If there is an automatic defrost system in the unit, check that it is functioning properly by removing the back cover. Make sure that all parts are connected and there are no holes or cracks in the insulation.
  • Also, check that all other components of the refrigerator are working properly. If they are not, they can cause the refrigerator to freeze food.

If you have already checked these things and you still have problems with your refrigerator freezing food, then you should probably call for service. A bad thermostat will cause a refrigerator to freeze everything inside it. It could also be caused by a faulty fan or a faulty compressor.

The solution is to defrost your refrigerator periodically by turning off the power and removing whatever has frozen in it–water bottles or soda cans will do–and then turn it back on again to see if things are working better.


How Do Mini Fridge Temperatures Work?

When deciding what number (degree) setting to use on your mini-fridge, consider the room where it’s located. If you live in a warm climate, for example, you’ll want the lowest temperature possible to keep things chilled and fresh. In cooler climates, you may be looking for the highest temperature setting so that everything stays at a constant temperature.

What Number Should My Mini Fridge Be On?

The basic concept is this: The higher the number on your mini-fridge dial, the warmer everything will be. The lower the number on your fridge dial, the colder everything will be.

For example, if you have a mini-fridge set at “1,” everything inside will be as cold as possible because it’s as close to freezing as it can get. If you have a mini-fridge set at “7,” everything inside will be warmer than normal because it’s as close to room temperature as possible.


Do Mini Fridges Stay Cold?

Definitely. The average mini-fridge or refrigerator gets cold enough to keep food fresh for a few days. If you have an older model, however, you may find that it just doesn’t get as cold as newer models do; if yours is more than 10 years old, consider replacing it with a new energy-efficient model.

Also, consider whether you need an even more compact option; under-counter refrigerators are great for small spaces and built-in refrigerators can be built into furniture such as cabinets.

The basic principle is a simple one: cold air sinks and hot air rises. In a refrigerator, the coils that do the cooling are at the bottom of the fridge; all the warm air generated by the fridge’s workings rises up and out through the vent on top.

So if you open the door and let in warm, moist air, it displaces some of the cool, dry air inside — which then sinks to fill its place. A mini-fridge doesn’t have nearly as much insulation as a full-size fridge, so it loses its coolness faster when opened.

How many times when you were growing up did your mother yell at you to close the fridge? Well, she was right and it is even more important with a mini-fridge.

And because it’s working harder in the first place to keep everything cool inside, it gets hotter — more warm moist air gets inside it, more cool dry air gets displaced.

It’s like your car: if you drive with the windows open in the summertime, you can feel how much hotter it gets than when they’re closed.


How Do I Make My Mini Fridge Colder?

There are a few simple things you can try before you go out and replace your fridge. First, you might want to check the thermostat and see if it’s set to the lowest possible temperature. It’s also possible that the thermostat is faulty and needs to be replaced.

The thermostat controls how cold the refrigerator gets. Check to see if it’s set to the coldest setting by pushing the button on top of the thermostat (may be labeled “coldest,” “max,” “colder,” “off” or some other variation).

It should move back and forth easily when pushed in either direction. If it doesn’t work well, you may need to replace it — especially if it’s old and worn out.

Clean up spills: For some reason, many people have trouble getting their fridges cold when there are spills in them. It’s possible that spilled milk has frozen in the coils and needs removed with a hairdryer or other appliance.

Place the fridge in a cool area. Most mini-fridges work best when kept in a room that is between 40 and 50 degrees Fahrenheit. If it’s too warm, the thermostat will turn off the cooling element, which means it will be harder to keep your food cold.

Don’t overfill your fridge with food. If you have too much stuff packed in there, it’s not going to be able to maintain its optimal temperature for as long as possible. If you’re worried about what might happen if you don’t have enough space, invest in a second refrigerator or freezer for food storage instead.

Empty out any liquid from inside your fridge before putting in new food products. The water that’s pooled inside can increase the temperature of your refrigerator, so getting rid of any excess liquid helps prevent this problem from occurring.


In summary, Mini-fridge temperatures can vary depending on the location of the appliance, whether it is set to its maximum temperature and even the orientation of the door. If a user keeps a mini-fridge in a garage or basement, for example, it is likely to get warmer than if it is kept indoors in a kitchen or office.

Additionally, some mini fridge owners may have accidentally changed the settings on their refrigerator and inadvertently increased its temperature.

You may also be interested in… Is Danby A Good Brand? (Highly Efficient Mini Fridges & Freezers) and Is Pfaltzgraff a Good Brand? (Dinnerware, Goblets, Cutlery)