Why Your Furnace Could be Blowing Cold Air

October 21, 2016

You listen to your HVAC system turn on and you’re ready for a comfortable blast of warm air, but instead all you feel is cool air blowing. That’s no good in the freezing weather!

There are a couple reasons why your heating equipment could be blowing cold air. Donelson Air Service Experts is here with some of them to help you detect the culprit.

 

  • Thermostat

 

It may sound 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 instead of “on.” If the thermostat is set to “on” then your HVAC system will blow constantly, even when it isn’t heating the air being released, thus blasting cold air. Changing it to “auto” will make sure the heating system only blows when it’s really heating the air to keep your home warm and comfy.

 

  • Air Filter

 

Typically air filters need to be changed monthly to prevent them from getting dirty and clogged. If air filters aren’t changed often enough, the dirty air filter may obstruct airflow into your furnace. If this occurs, it can overheat your system, causing the furnace to stop heating as a safety precaution.

 

  • Duct Work

 

If your duct work includes leaks, connection troubles, or was designed incorrectly, it could allow warm air from the furnace to leak out. This would not only cause your heating system to produce cold air, it could actually 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 furnace could produce cold air. Call Donelson Air Service Experts today and we’ll send a professional to diagnose your malfunction 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 learn how you can save money on a Precision tune-up.

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