Nothing’s more frustrating than turning on your air conditioner and feeling warm air pour out of your vents. You expect relief—especially in the middle of a Texas summer—and instead, you’re left sweating. At Superior AC & Heat, we help homeowners in Burleson, Arlington, and nearby areas get answers fast when their AC blows warm air.

This issue can stem from a range of problems, but one thing’s certain: the longer it goes unfixed, the more uncomfortable (and costly) it becomes. Here’s a breakdown of what might be happening—and how we fix it the right way.

1. Your Thermostat Isn’t Set Correctly

Believe it or not, the problem might not be with your AC at all. If your thermostat is accidentally set to “heat” or “fan,” you won’t get any cool air, even though the system is running. Before calling for service, double-check that the thermostat is on “cool” and set to your desired temperature.

If it’s set correctly but still blowing warm, we take it a step further—checking thermostat wiring, calibration, and even considering replacement if it’s giving your system the wrong commands.

Why Your AC Blows Warm Air (and How We Fix It)

2. Your AC Is Low on Refrigerant

Refrigerant is the lifeblood of your air conditioner. It absorbs heat from your indoor air and carries it outside to be released. If your system is low on refrigerant, it simply can’t cool the air. The result? A system that runs but delivers only warm or slightly cool air.

Low refrigerant is usually caused by a leak, not a one-time loss. At Superior AC & Heat, we don’t just “top it off.” We find the leak, fix it, and recharge the system properly, restoring your AC’s cooling ability and efficiency.

3. Your Compressor Isn’t Working

The compressor is the heart of your AC unit—it pumps refrigerant through the system and enables heat exchange. If it fails, the entire cooling process stops. Your fan might still run, blowing uncooled air through your vents, which feels like warm air.

When a compressor goes out, we inspect all electrical components, refrigerant pressure, and startup controls to confirm. Depending on your system’s age and condition, we repair the issue or recommend a cost-effective replacement.

4. Your Outdoor Unit Is Blocked or Dirty

Your AC needs to release heat outdoors, and that job falls to the condenser coil in your outdoor unit. If the unit is blocked by debris, clogged with dirt, or surrounded by weeds, it can’t perform properly.

That trapped heat has nowhere to go, and your indoor air never gets the chance to cool. Our technicians clean the coils, remove debris, and restore full airflow so your system can get back to work.

5. Your Air Filter Is Clogged

A dirty air filter reduces airflow, causing your system to overheat or even freeze up. This can lead to warm air blowing through your vents—or no air at all. Many people forget to change their filters regularly, especially during heavy-use months.

We check your filter first thing and recommend the proper replacement schedule for your system and home’s needs.

6. Your Evaporator Coil Is Frozen

A frozen evaporator coil blocks the exchange of heat and prevents your system from cooling the air properly. This can be caused by low refrigerant, poor airflow, or mechanical issues.

We locate the root cause, thaw the system, and address whatever is causing the freeze-up—so it doesn’t happen again.

7. Electrical or Control Issues

Sometimes, a blown fuse, faulty capacitor, or broken contactor prevents key parts of your system from running. For example, if the outdoor unit loses power but the indoor fan keeps running, you’ll feel warm air.

Our team performs a full electrical inspection to catch and correct these issues quickly—getting your entire system back in sync.

What We Do Differently at Superior AC & Heat

We know your time matters, and so does your comfort. That’s why we don’t waste it guessing. Our process is straightforward:

  • Diagnose the real problem
  • Show you exactly what we found
  • Offer repair or replacement options based on what’s best for your home
  • Fix it right—fast and with high-quality parts
  • Follow up to make sure your system stays dependable

We don’t do band-aid fixes. We repair the problem at the source, so you don’t have to deal with it again next week.

Stay Cool, Stay Comfortable—Let Us Help

Warm air from your AC is more than inconvenient—it’s a warning sign. Whether you’re dealing with a refrigerant leak, a faulty thermostat, or a frozen coil, we’re here to solve it quickly and affordably.

If your AC is blowing warm air, don’t sweat it. Call Superior AC & Heat today and let our experienced team restore cool, clean air to your home—just the way it should be. We serve Burleson, Arlington, and surrounding areas with professional service and honest advice.

Ready For Your Superior HVAC Service?

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When you choose our team to install a new furnace for your home, you can rest assured that the technician sent to assist you is a highly trained expert who will ensure 100% satisfaction. We are always happy to recommend the most affordable and effective solutions for your home or office. Ask us about any of our services today!

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