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Fridge Air Vents - What If It Is Blocked?

Did you realize that your refrigerator’s air vent can become obstructed? This guide explains what an air vent is, how it becomes blocked and how to unblock it.

With so many different options and brands of refrigerators available now, one thing remains the same – the freezer and the fridge must be the right temperature.

The refrigerator stays cold because it is able to maintain consistent air flow between the fridge and the freezer portion. That’s often because the majority of fridges (those at least on the more budget end of the scale) only cool one area (that’s right, the freezer, which in turn uses much colder freezer air to cool down the fridge that little bit more).

The air vents of a refrigerator are a bit to thank for this, as you might suspect…

What Do the Vents Do?

So What Purpose Do These Vents Serve? So before we talk about common vent air blockage and also troubleshoot different types of air flow issues with a fridge, let’s first understand how these vents work. Why are they so important?

There, as we said, in most refrigerators, the entire fridge box is cooled by the freezer compartment, either on top or on bottom (based on the fridge model). The cold air is delivered by the vents from the freezer to the refrigerator section. Then, the air is returned to the freezer through the refrigerator return air vent.

This airflow is ongoing. And it’s the flow of the cold air that ensures that everything gets properly cooled and dried.

But the airflow shifts if some of the vents are obstructed. This may produce several irregularities in refrigerator cooling. If there is one vent that’s freezing up, the entire “chamber” inside the refrigerator can be affected. There are so many considerations on the table here.

The Issues of Blocked Vents

An altered refrigerator him can result in temperature variations across its body. Cooling in the fridge compartment can even get affected and it may get frozen.

Clogging the vent can also lead to a buildup of moisture. That’s because cooling also dehumidifies the air. Icy blockage on fridge vents can cause airflow to be disrupted, resulting in moisture buildup. That is not an ideal scenario as far as refrigerator upkeep goes.

After that, there might be temperature challenges and variations. The same goes for the temperature, which can vary between compartments and result in spoiled food, ice and more.

There’s also the risk of everything freezing in the fridge. Anything put directly in front of the vents, obstructed or not, could freeze. Airflow also gets somewhat unpredictable if, say, your vents are blocked. Other food/beverage items in the way of the disturbed airflow might begin freezing!

How Do Vents End Up Blocked?

Except for some unknown issue with the vent, it’s almost always because something was put in front of the vent to block airflow. Yes, it is pretty much an after bonus in the fridge. That’s why it’s so crucial to understand where the air vents on your fridge are.

Vents are usually positioned such that they’re not prone to being blocked by airflow much. So there shouldn’t be a vent on the underside of a shelf when anything can come along and block it.’ Normally, the vents are located at a high portion of a fridge shelf. Still, placing a tall object in front of the treat will obstruct it. ”Tall items (like tall bottles) should always be in the back.”

RELATED: Most people are using their refrigerator wrong — here’s how to do it right “It’s also very important to not over-crowd your fridge. If you cram that thing full, the vents aren't just probably going to be obstructed they're also probably going to be obstructed, they’re also probably going to get all fucked up. This can result in items freezing inside some parts of the fridge. Or, in the case of a mostly empty fridge with pristine airflow, that your fridge could get colder than you set it to. And with nothing to heat, the temperature will fall. That said, you can find a guide to organizing your fridge if you really want to get it right.

Vents Icing Up

While you may have inadvertently blocked the vent, that may not be the issue for you. There could be a block of ice in the vent leading to the fridge compartment, and that is a symptom, not the cause of a problem.

In most refrigerators, there is a defrost system that saves you from freezing where it is not wanted. But you might also have an issue with the defrost system, which can cause the vents in your fridge to ice over. This will slowly create an obstruction of fresh air to the appliance and may end up with it stopping all together.

In most cases this is because the drain line becomes clogged and water pools and ices near the vent or the air diffuser. The only solution for this is to call for the services of a centre that can repair or replace your defrosting system.

Vent Malfunction

If more than one vent is out of whack, you know the issue probably exists somewhere else. What are the odds, after all, that multiple vents would all suddenly fail at once? You need to be able to determine if one vent in your Fridge is line is bad, if for instance the upper fridge vent has become blocked up or the lower fridge vent froze up, you can safely assume you have a vent problem.

You can’t do much about this one on your own, unless you moonlight as a refrigerator technician. Again, you will need to have the vent replaced or, even more likely, repaired.

Other Refrigerator Issues

A refrigerator has myriad ways it can break. In that spirit, we’ve curated a collection of some common fridge complaints.

Dirty / old gasket seal, your freezer’s borders / If your fridge is several years old, then you might notice that its gaskets are dry and dirty, warped, or ripped. As a consequence, a poor seal may occur with resulting moisture, freezing and energy dissipation.

Dirty compressor coils – Those coils in the back of the fridge can become dusty over time. Just remember to clean them every now and then.

Thermostat problems – The thermostat regulates the heat. Ensure it’s functioning correctly.”

Refrigerator Air Vents

Clogged or defective vents and the wrong air flow are both part and parcel in many refrigerators. Follow this guide and, if you don’t fancy dealing with it yourself, you may wish to call to have your fridge serviced.