Why Your Furnace Could be Blowing Cold Air

October 21, 2016

You hear your HVAC system kick on and you’re expecting a comfortable blast of warm air, but instead all you feel is cool air blowing. That’s not what you want in the freezing weather!

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

 

  • Thermostat

 

It may feel silly, but the thermostat is the first place you should check. It’s the starting point for any heating technician, too. Confirm the system is set to “auto and not “on.” If the thermostat is set to “on” then your HVAC system will blow continually, 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 becoming dirty and clogged. If they aren’t changed often enough, the clogged air filter may obstruct airflow into your furnace. If this happens, it can overheat your system, causing the system to stop heating as a safety precaution.

 

  • Duct Work

 

If your duct work includes leaks, connection troubles, or was not designed properly, it could allow warm air from the furnace to escape out. This would not only cause your furnace to blow cold air, it could significantly 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 blow 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, call about our fall promotion and find out how you can save money on a fall tune-up.

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