Is Your Furnace Blowing Cold Air? You Might Need HVAC Repair in St. Louis, MO

If you aren’t a trained HVAC technician, there are a multitude of things about your system that you might not understand. Even though some of the aspects of your system’s functioning can be confusing, at the very least you should be able to expect that hot air will come out of your furnace—or at least that’s what you would think.

Unfortunately, you can’t always count on this fact, and there are certain factors that may cause your furnace to begin blowing cold air instead of warm air. This certainly won’t help you stay comfortable during the winter months, so it’s important to identify the issue and get HVAC repair in St. Louis, MO when necessary in order to solve the problem. When cold air is coming out of your furnace, here are some of the things that might be going on:

  • Your pilot light is out: Your pilot light should be on all the time in order to ignite your fuel and begin the heating process for your furnace. If the light is out, your furnace will not be able to burn gas, so your air won’t be heated as it normally would be. There are a number of reasons why your pilot light might be out, and the solution might be as simple as reigniting the light. If this doesn’t work, try checking to make sure that gas is flowing. If your light won’t stay lit no matter what, there’s an issue with your system that will likely require professional HVAC repair in St Louis, MO.
  • The settings on your thermostat are off: The first thing you should do when your furnace is blowing cold air is to check the thermostat settings. If your fan is set to “on,” it will be blowing regardless of whether your air is being heated or not. Setting your fan to “auto” will ensure that it only blows air when the furnace is turned on and heating your air.
  • Your furnace is overworked: The filters in your system are responsible for catching debris and contaminants so that they aren’t circulated through your home. If you don’t care for or change out these filters regularly, they can accumulate an excessive amount of debris and restrict airflow in your system. When airflow is restricted, your furnace has to work much harder and it can become overworked and overheated. An overheated furnace will often turn off automatically as a safety precaution. If this is the issue, you should try to clean your filters, or simply replace them.

Whether your furnace is blowing cold air or you’re due for a seasonal system service check, you can get help from the professionals here at Ashley Brothers Heating & Cooling. We have been offering residential and commercial HVAC repair in St. Louis, MO to our customers since 1999. Our years of experience have given us the ability to provide exceptional installation, repair and maintenance services that fit our customers’ exact needs and circumstances. We understand that your HVAC system can pose some unique problems, which is why our team takes the worry off of your shoulders to help you ensure that your system is running effectively and efficiently. Give us a call today for more information!