Why Is My AC Blowing Warm Air? Expert Tips from Staten Island HVAC Pros
Sal Galati • July 29, 2025

Why Is My AC Blowing Warm Air? Expert Tips from Staten Island HVAC Pros

Staten Island homeowners understand the importance of having an air conditioner that works at peak performance during the height of summer heat. If your AC is not keeping your home cool and comfortable, Reliable Heating & Cooling can help! Read on to discover ways to diagnose and resolve one of the most common summertime issues: ACs blowing warm air.


Change Your Air Filter

Is your air filter clogged? Don't worry; this is a quick and easy thing to fix yourself! Adequate airflow is essential for the performance and longevity of your HVAC system. On average, we recommend replacing your air filter every three months. If you live in an environment prone to heavier levels of indoor air pollutants, changing them more often is highly advisable to avoid clogs.


By making a habit of changing your air filter regularly, you're not just preventing clogs. You're also improving your indoor air quality, extending the life of your HVAC system, and reducing your monthly energy bill. When clogs occur, your air conditioner has to work harder, causing parts to wear out sooner and increasing the energy needed to keep your home comfortable.


Test Your Thermostat Settings

Test your thermostat settings. Often, the solution to an air conditioner blowing warm air is as simple as adjusting your thermostat to the correct setting or desired temperature. If your home still uses an outdated manual thermostat, consider upgrading to a modern device with Reliable Heating & Cooling. This switch can save you a significant amount of money on your energy bill and introduce you to a range of convenient features. You'll love the innovative technology and the control it gives you over your home's comfort!


Check for Low Refrigerant Levels

Low refrigerant levels are another common cause for an air conditioner blowing warm air. Every HVAC system needs a set amount of this vital chemical solution for its performance. It absorbs heat from the indoor air and releases it outside, allowing your AC to cool your home.


If you suspect that there might be a refrigerant leak, it is crucial to contact our expert team immediately. Refrigerant is not only harmful to your health but also damaging to the environment. Our team has the tools, training, and experience necessary to resolve the issue quickly and safely, ensuring your well-being. When you need AC repair in Staten Island, you can count on Reliable Heating & Cooling, regardless of job size!


Is Your Evaporator Coil Frozen?

Low refrigerant levels and poor airflow can cause the evaporator coil to freeze. When this happens, it will feel like your air conditioner is blowing warm air. If the cause of a frozen evaporator coil is a clogged air filter, the first step is to replace your air filter. Allow the coil to thaw, and then test your air conditioner again to see if it is blowing cool air as it should. If the issue persists, contact your local HVAC team, Reliable Heating & Cooling. We will communicate with you every step of the way, ensuring your peace of mind.


Examine Your Ductwork for Leaks

The ductwork for your HVAC system can be found in spaces such as your attic and walls. If there are leaks in your ductwork, the cool air will escape before it can make your home comfortable. The dirt and debris that collect inside ductwork can also decrease your indoor air quality when leaks occur. Reliable Heating & Cooling has you covered! Not only do we repair ductwork, but we also provide vital duct cleaning services. How do you know when you need to schedule one?


It's time to schedule duct cleaning services when you begin noticing symptoms such as:

  • Skyrocketing energy bills 
  • Strange smells
  • Dust is accumulating on surfaces
  • Reduced airflow 
  • Chronic allergy or asthma symptoms


We Can Help

If your AC is blowing warm air in Staten Island, call 347-934-8165 today to schedule service with your trusted HVAC partner, Reliable Heating & Cooling! Be sure to ask our friendly team about the exclusive promotions and the convenient financing options that make our services even more affordable for our valued customers like you! With over 15 years of experience serving our community, you can trust that your home's comfort is in good hands with us.

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