Why Your Furnace Could be Blowing Cold Air

You notice your furnace start up and you’re anticipating a comfortable blast of warm air, but instead all you get is cool air blowing. That’s no good when it’s cold outside! 

There are a few reasons why your furnace could be blowing cold air. Service Experts Heating & Air Conditioning is here with a couple of them to help you detect the issue. 

  • Thermostat 

It might seem silly, but the thermostat is the first place you should check. It’s the first place any heating system technician will check, too. Verify the system is set to “auto as opposed to “on.” If the thermostat is set to “on” then your furnace will blow continually, even when it isn’t heating the air coming out, thus blowing cold air. Turning it to “auto” will make sure the furnace only blows when it’s actually heating the air to keep your home warm and comfortable. 

  • Air Filter 

Typically air filters need to be changed monthly to avoid them from becoming dirty and clogged. If air filters aren’t swapped out often enough, the dirty air filter may impede airflow into your heating system. If this happens, it can overheat your system, causing the equipment to stop heating as a safeguard. 

  • Duct Work 

If your duct work has leaks, connection issues, or was designed incorrectly, it could let warm air from the heating equipment to seep out. This would not only cause your heating equipment to give off cold air, it could seriously run up your energy bills since your furnace is heating non-living space, and will have to work more to keep your home at the desired temperature. 

There are many other reasons that your furnace could produce cold air. Call Service Experts Heating & Air Conditioning today and we’ll send a technician to diagnose your problem and get your home warm and comfy again in no time. If you have yet to turn on your furnace but don’t want to get left in the cold, give us a call about our fall promotion and find out how you can save money on a heating tune-up. 

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