My Furnace Is Blowing Out Cold Air: The Possible Reasons

One of the first things you need to do is check the thermostat. There is a chance that the thermostat might be set too low. For this reason, your furnace might not be trying to increase the temperature in your house. Check the settings on the thermostat and make sure they are not only set to the right temperature but also set to “heat.”

Next, you need to check the air filter to make sure it is not clogged. From time to time, your air filter might get clogged, and you have to replace it. If the filter is clogged, the air will not be able to pass through it. As a result, your furnace will have to work harder to do its job, and it might overheat. Therefore, it no longer blows out hot air. If you replace a clogged air filter with a clean one, you can fix this issue.

In addition to watching for a clogged air filter, you also need to take a closer look at the air vents. Make sure they are not blocked by furniture, drapes, or any other obstacles. If the air vents are blocked, the furnace can overheat quickly, just like a clogged air filter. Check the air vent to make sure it is not clogged. Then, try running the furnace again.



If none of the above troubleshooting tips fix the problem, it is time to reach out to a professional who can help you.

Reach Out to a Professional for Help

There are other reasons why your furnace might be blowing out cold air, but these require a professional’s attention. Some of the most common examples include:

• If there is a problem with the pilot light or ignition, your furnace might not be able to turn on. A professional will have to address this issue for you.
• There might also be some structural problems with your air ducts. If your ductwork has leaks that need to be sealed, a professional can assist you.
• There is also a chance that your furnace might not have an adequate gas supply. If there is not enough gas flowing to the furnace, or if the gas supply has been turned off, your furnace might be shutting down.



These are all potential reasons why your furnace might be blowing out cold air. If you are having a difficult time getting your furnace to blow out hot air, it would be our pleasure to assist you. Contact us today to schedule an appointment with a member of our team, and let us help you make sure your furnace is working properly.