Why Your Furnace Could be Blowing Cold Air

You notice your furnace start up and you’re expecting a cozy blast of warm air, but instead all you get is cool air blowing. That’s not preferable when it’s cold outside! 

There are a couple reasons why your furnace could be blowing cold air. Stevenson Service Experts is here with a couple of them to help you detect the problem. 

  • Thermostat 

It could feel silly, but the thermostat is where you should start. It’s the first place any heating system technician will check, too. Verify the system is set to “auto instead of “on.” If the thermostat is set to “on” then your heating system will blow continually, even when it isn’t really heating the air being produced, thus putting off cold air. Turning it to “auto” will make sure the furnace only blows when it’s truly heating the air to keep your home warm and comfy. 

  • Air Filter 

The majority of air filters need to be changed monthly to avoid them from getting dirty and clogged. If they aren’t swapped out often enough, the soiled air filter may restrict airflow into your furnace. If this happens, it can overheat your system, causing the furnace to stop heating as a safety precaution. 

  • Duct Work 

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

There are multiple other reasons that your heating system could give off cold air. Call Stevenson Service Experts today and we’ll send a technician to diagnose your issue 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, call about our fall promotion and learn how you can save money on a fall tune-up. 

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