Furnace And Heat Pipes

Why Is Cold Air Coming From My Furnace in Raeford, NC?

November 29, 2023

With temperatures dropping as we move further into winter, you’ve already started using your furnace more. If your furnace starts blowing cold air instead of warm, your home is not only uncomfortable, but it’s also unsafe. Learn more about three possible causes of your furnace blowing cool air.

Damaged Pilot Light

Your furnace’s pilot light ignites the burners, allowing it to push warm air throughout your home. If your pilot light begins to malfunction or suffers damage, there is no flame present to ignite your burners, resulting in an absence of heat. If your thermostat signals for your heating system to start running while the burners aren’t working, your system will push cool air through your home.


Several reasons exist for a furnace overheating, but the result is always the same: your heating system temporarily blows cool air before shutting off completely. Typically, heating systems overheat because of the accumulation of dirt and debris or a mechanical failure.

It’s also common for furnaces that are more than 15 years old to start overheating as parts wear out. No matter how committed you are to regular HVAC maintenance, furnaces typically wear out after 15 to 20 years of use. If your furnace blows cold air because of overheating, call for immediate furnace repair.

Incorrect Thermostat Setting

One of the most common causes of a furnace blowing cold air is also one of the easiest to fix. It’s easy to hit the wrong button when setting your thermostat, resulting in your fan being set to “On” instead of “Auto.” If you accidentally leave your fan on, your furnace blows unheated air throughout your home all the time.

If your furnace starts blowing cold air, do not wait another moment to call for help. Contact Sandhills Heating, Refrigeration & Electrical for our heating and AC repair services today and restore comfort in your Raeford, NC home.

Image provided by iStock

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