Why is My AC Not Blowing Cold Air?

Often, a summer heat wave hits, and you seek refuge in your cool home, only to find your AC is blowing warm air. This isn’t just uncomfortable, as it can lead to muggy rooms, poor air quality, and high humidity. Why is your AC not blowing cold air? No matter the cause, we’ve got reliable solutions. At Fante’s, solving HVAC issues is our specialty. The HVAC experts at Fante’s know how to get your AC back in shape to keep your home cool and comfy all summer.

Reasons Your AC is Not Blowing Cold Air

Being stuck in a hot, stuffy house with no relief is no fun. If you’re sweltering and wondering, “Why is my AC not blowing cold air?”, we hear you. Let’s explore some of the most common reasons why your AC is not blowing cold air.

1. Your Thermostat Settings Are Wrong

Sometimes, the issue with your central AC starts and ends with your thermostat. It might seem too simple, but make sure your system is not set to ON (fan mode). Switch it to AUTO to ensure the AC fan only blows cooled air into your home. Also, some thermostats need batteries to function correctly, so it might be time for a replacement.

2. You Have a Refrigerant Leak

Low refrigerant levels will prevent your AC from blowing cold air. Listen for a distinct hissing noise from the refrigerant lines, indicating a leak. You might also see ice buildup on the evaporator coils, but this can be hard to spot if your AC is simply not blowing cold air. If you suspect a leak, turn your AC off immediately and call an HVAC professional, as refrigerant leaks can be toxic.

3. Your Coils Need to Be Cleaned

Most AC units have evaporator and condenser coils that can get dirty or moldy over time. To keep your AC blowing cold air, these coils should be cleaned at least once a year. Hiring a reputable HVAC company like Fante’s for a tune-up and cleaning will increase energy efficiency and reduce the chances of a major AC repair due to lack of maintenance.

4. Your Air Filters Need to Be Replaced

If your air conditioner runs but isn’t blowing cold air, try changing the filter. Air filters trap dirt, dust, and other particles before they reach your home’s airflow. Most HVAC companies recommend changing dirty filters every 90 days, or more often if you have a large home, you have indoor pets, someone in the home smokes or vapes, or household members have allergies.

5. Your Compressor Malfunctioned

The compressor, the heart of your AC unit, controls all other parts of your air conditioner. Signs of a broken compressor include your AC not blowing cold air, shaky or noisy units, or moisture around your AC system.

6. Your Outdoor AC Unit is Clogged

Your outdoor AC unit endures all weather conditions, so debris like branches and leaves can clog it. While a few twigs are usually harmless, significant debris can overwork and overheat your system, causing it not to blow cold air. Regular maintenance can help AC units last up to 20 years, especially with proper insulation and air sealing in your home.

7. There is a Duct Leak

Air travels through ducts before reaching your rooms. Over time, ducts can separate from vents, creating gaps that let cool air escape into obscure places like the attic. This means warm air is delivered into your home. Proper air sealing and insulation, including sealing up air leaks from aging ductwork, can help maintain a cool and comfortable home.

Contact Fante’s to Discuss Your AC Repair or Replacement Needs

If you live in New Jersey and are experiencing issues with your air conditioning system not blowing cold air, contact Fante’s for reliable AC repair and replacement services. Our experienced team specializes in diagnosing and solving HVAC problems, ensuring your home remains cool and comfortable. We offer expert advice, prompt service, and quality solutions tailored to your needs. Whether you need a simple repair, regular maintenance, or a complete system replacement, Fante’s is your go-to source for efficient, dependable HVAC services in New Jersey. Reach out to us today at 1-609-835-1512 to get your AC back in top shape and enjoy a comfortable summer.