Common AC Issues: Blowing Warm Air
Brad Gordon • February 5, 2024

After completing your weekend yard work, you head inside to find some relief from the sweltering Florida heat. You expect your air conditioner to blow refreshingly cold air and help you wind down, but it’s instead blowing warm air, creating an awfully uncomfortable atmosphere in your home! 



Every summer, residents throughout Florida face that exact problem, but the good news is that you don’t have to diagnose the problem alone; turn to an AC repair company in Longwood, FL, to determine what’s behind the issue and fix it.

Common Reasons Your AC Is Blowing Warm Air

Many factors impact your air conditioner's efficiency, each with signs that can alert you to a problem:

Wrong Thermostat Settings

Sometimes, your AC may be blowing warm air because of simple human error; you may think you have the system set to “cool,” but the thermostat is instead set to “warm” or “fan.” It’s an easy problem to resolve, and you can typically do so without the help of a professional.



Look at your thermostat to see what setting it’s on, and remember that the temperature setting must be low enough to make a difference. If that doesn’t fix your issue, you may need to swap out the batteries, and if that doesn’t work either, then it may be best to call in the pros to have a look.

Dirty Air Filters

Air filters stop debris and particles from moving through your AC unit, but those same materials cause them to become dirty and clogged, reducing airflow through your system and resulting in warm air circulating through your home. 



A technician from an AC repair company in Longwood, FL, can replace the filter to solve the problem. It’s recommended to replace the old one every one to three months, but always follow the manufacturers' recommendations for your specific brand and model.

Low Refrigerant Levels

Refrigerant is a necessary component for any AC to run correctly; it helps generate the cold air that moves through your home by absorbing humidity and heat from the air outside, leaving you with cool and calming relief.


Running low on refrigerant, though, is a problem that cannot be resolved without the help of an AC repair company in Longwood, FL, as there are many potential causes behind it, such as a leak, recharging the refrigerant, or a more significant problem within the unit itself

Friendly AC Repair Company in Longwood, FL

If your AC is blowing warm air or you’re experiencing any other AC issues, Astoria Heating & Cooling can help. Contact us today to schedule your appointment with a friendly, local, and trustworthy HVAC company.

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