Why is Your AC Blowing Warm Air?

Sweaty Man

Air conditioners are designed to blow cold air and make your home a more comfortable place to live in. So when your AC starts blowing warm air - the complete opposite of what it’s supposed to do - you know you have a problem.

There are many possible reasons why your AC is blowing warm air, and you need to figure this out to be able to address the root cause. In this article, we will share the most common reasons.

1. The evaporator coils are dirty

One of the most common reasons your AC might be blowing warm air is that your evaporator coils are dirty. The evaporator coils are found in the indoor air handler unit and play a crucial role in the cooling of air. They absorb the hot air and are cooled by refrigeration.

So when they become dirty, they won’t be able to cool the air effectively and warm air will be blown out of your air conditioner instead.

2. The air filters are clogged

The air filters in your AC are responsible for trapping particles and pathogens in the air, ensuring that your indoor air is safe to breathe. When your air filters become saturated and clogged, the flow of cool air will become restricted as well.

Furthermore, this may lead to an overworked system that leads to more severe problems. The best practice is to replace your air filters every 1 to 3 months depending on factors such as the square footage of your home, pets, smokers, family members with allergies, and the workload of your AC unit.

3. The condensate line is clogged

The condensate line is the component that carries moisture outside. Because the heating and cooling process of your AC involves the release of a lot of condensation, your drain line is constantly wet, possibly leading to the buildup of mold or algae.

So when your condensate line is clogged, it becomes harder for your unit to remove humid air. Thus, warm air blows throughout your home instead of cool air.

4. There are leaks in your duct

When your ductwork has leaks, warm air may be mixed with the cool air. So when your ducts deliver air around your home, you will notice that it is warmer than normal.

Keep in mind that ductwork problems are best handled by professionals. It is also recommended to have it cleaned or serviced every three to five years to prevent leaks and other problems.

5. The compressor is malfunctioning

Your AC depends on the refrigerant to be cycled through the unit for it to produce cold air. So if the compressor is not working properly, the refrigerant won’t be able to turn from a gas to a liquid and won’t cool the air.

Additionally, if there is a refrigerant leak, your AC won’t be able to blow cold air. A telltale sign that you have a refrigerant leak is when the evaporator coils are frosted over but your AC is producing warm air.

Keeping Your AC Unit in Check

Just like any other appliance, your air conditioner undergoes natural wear and tear. On average, an AC unit can last for 15 to 20 years, depending on how you use and maintain it.

So if you notice that your unit is blowing warm air and you’re wondering if it requires repairs, routine maintenance, or replacement, it’s best to call expert technicians right away.

At Rebel Refrigeration, we are the most trusted provider of air conditioning, heating, plumbing, and refrigeration repair, maintenance, and installation services in the Las Vegas area. We understand that having a malfunctioning AC unit in the middle of the heat of Las Vegas is inconvenient and unsafe, so contact us right away for your AC services needs. Call (702) 766-9436 or contact us here to have a chat with one of our team members today!

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