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Why Is My AC Blowing Warm Air?

June 27, 2023


Put the Freeze Back In Your Breeze

You’re thinking about what to eat for dinner when you remember you have a coupon for your favorite Italian restaurant. Eggplant rollatini it is! You’re excited and ready to place your order when you look at the coupon and realize it expired two months ago. So much for Italian!

An expired coupon is like an air conditioner that blows warm air. It’s useless and just plain frustrating! If your AC is blowing warm air and you don’t know why, we’re going to point out some possible explanations. Depending on the problem, you may need an HVAC company in the Coachella Valley to repair your unit and restore the steady flow of cool air.

  • Check the thermostat. First and foremost, double-check to make sure the thermostat is set to “cool.” This might sound crazy, but we’ve seen it happen! When the kids are home during the summer, you can’t assume no one fiddled with the thermostat or accidentally changed the settings. Also, make sure the fan is set to “auto” instead of “on.” Otherwise, the fan will run non-stop whether the AC is on or not. This can cause warm air to flow through the vents and into your living space.
  • Your AC is leaking refrigerant. Without ample refrigerant, your AC is all show and no go. Refrigerant is the liquid in air conditioners that absorbs heat and humidity from the air. But when the unit is leaking refrigerant, it won’t be able to work properly. If you notice ice on the outside unit or hear hissing or bubbling noises, these are telltale signs of a refrigerant leak. You’ll need to have a technician come in to fix the leak and add new refrigerant.
  • The evaporator coils are dirty. The evaporator coils hold the refrigerant as it absorbs heat from the air. When the coils become dirty due to lack of maintenance, this impacts the cooling capacity of your air conditioner. 
  • The air filter is clogged. Think of the air filter as the lungs of your air conditioner. Your AC can’t breathe and provide cool air if the filter is clogged and dirty. This is why it’s so important to change the air filter on a regular basis. Otherwise, your AC will continue to blow warm air and eventually, shut down altogether.
  • There’s a problem with the fan. There are a number of reasons why the AC fan can stop working, including electrical issues, a worn-out motor and much more.   
  • There are leaks in your ductwork. According to Energy Star, homes with forced-air heating and cooling systems lose 20 to 30 percent of the air moving through the ducts due to leaks, holes and poorly connected ductwork. In addition to increasing your monthly energy bills, leaks in your ductwork can explain why your AC is blowing warm air. If there are leaks in hot areas like the attic, the hot air will enter your ductwork and pass through your air vents.

Keep Your Cool With Timo’s

Your AC was designed to provide cool air without compromise. If the air coming through your vents is warm or hot, there’s definitely a problem that needs to be fixed. That’s how we can help!

To schedule AC repair for your home in Palm Desert or across the Coachella Valley, contact us online or call Timo’s Air Conditioning & Heating at 760.475.9542 today.  

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