Why Your Furnace Could be Blowing Cold Air

You notice your furnace start up and you’re anticipating a cozy blast of warm air, but instead all you have is cool air blowing. That’s not preferable in the freezing weather! 

There are a handful of reasons why your heating equipment could be blowing cold air. Stevenson Service Experts is here with a few of them to help you find the culprit. 

  • Thermostat 

It could feel silly, but the thermostat is where you should start. It’s the starting point for any heating technician, too. Confirm the system is set to “auto as opposed to “on.” If the thermostat is set to “on” then your HVAC system will blow continually, even when it is not actually heating the air coming out, thus blowing cold air. Flipping it to “auto” will make sure the heating equipment only blows when it’s truly heating the air to keep your home warm and comfortable. 

  • Air Filter 

The majority of air filters need to be changed once a month to prevent them from getting dirty and clogged. If your filters aren’t replaced often enough, the clogged air filter may impede airflow into your heating system. If this occurs, it can overheat your system, causing the equipment to stop heating as a safety precaution. 

  • Duct Work 

If your duct work contains leaks, connection issues, or was not designed correctly, it could permit warm air from the furnace to leak out. This would not only cause your furnace to produce cold air, it could seriously run up your utility bills since your heating system is heating non-living space, and will have to work more to keep your home comfortable. 

There are many other reasons that your heating system could blow cold air. Call Stevenson Service Experts today and we’ll send a technician to diagnose your malfunction and get your home warm and comfy again in no time. If you have not turned on your heating system yet but don’t want to get left in the cold, give us a call about our fall promotion and learn how you can save money on a fall tune-up.