3 Reasons Your Central AC System Is Blowing Hot Air

Posted on: 24 January 2018

If you rely on your central air conditioning in the warm summer months, you may instantly notice a problem when the system does not seem to be cooling your house. If your house feels warmer than it should, you can place your hand by one of the vents to see if it is blowing cool air. When the air you feel is warm air, you will most likely need to contact an air conditioning repair company to fix it. If your system is blowing out warm air, it is usually due to one of the following reasons.

The Air Filter Is Clogged

One reason an AC system will blow hot air instead of cool air is from a clogged air filter. You might not realize that the air filter in the system is that important, but it really is. When the air filter gets too dirty, it prevents the system from getting enough airflow. The restriction of airflow to an AC system will prevent the system from cooling the air, and this will lead to the system blowing out hot air.

If you check your filter and find that it is clogged, you should replace it. If this causes your AC to start blowing cold air again, you will not need to hire an AC repair company.

The Outdoor Condenser Is Clogged

Another type of clog that will cause a system to blow hot air instead of cool air involves clogs in the condenser. The condenser is the part of your AC system you will find outside, and this component is prone to clogs simply because of its location. If you look at your outdoor condenser and see weeds or bushes growing over it, this could be the cause of your AC problems. You will most likely need to hire a repair company to fix the problem unless you can unclog it yourself.

The Coolant Is Low

The other common cause of this problem is low coolant in the system. Your AC system relies on having enough coolant in it for it to do its job. When the coolant gets low, it cannot cool the air. The only reason your system might have low coolant is if it has a leak in it somewhere. Finding the leak will require the help of a repair company, and they will not replace the coolant in it until they find and fix the source of the leak.

When a central AC system blows hot air, it might be for one of these reasons, or it could be from another cause. You can hire an air conditioning services company to help you find and fix the problem. 

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