Why is My Gas Furnace Blowing Cold Air?

November 13, 2018

As the weather changes, the more you feel the colder air blustering outside. And … right inside your house? If your gas furnace is blowing cold air and adding a chill to your Katy home, it’s time to contact Goode Bros AC & Heating. Occasionally an absence of warm air from your gas furnace calls for a large repair, but many times it can be an easy fix. Here are some of the main reasons your gas furnace may be blowing cold air instead of making your home warm and cozy.

Your furnace could be overheating

If you haven’t had regular maintenance done on your gas furnace for some time and you’ve forgotten to change your air filter, both could be the reason why your furnace is blowing colder air. A dirty air filter can prevent air from flowing freely through your furnace. When this happens, the furnace might overheat and force the burner to shut down.

Your pilot light may have gone out

It could be that a lack of warm air from your gas furnace can be related to something as simple as a pilot light that’s gone out. It’s possible, especially with older furnaces, for a breeze to extinguish a pilot light. Other causes of an extinguished pilot light are damaged gas valves or a faulty thermocouple.

Your furnace is dirty

Just as a dirty air filter can cause issues for your gas furnace, so can other furnace components if they aren’t correctly cleaned. A dirty gas burner or flame sensor could cause your furnace to struggle to stay lit and reduce the warmth inside your house.

Your ducts may not be properly sealed

If your ducts aren’t properly sealed or if they have any cracks or holes in them, you may be losing a lot of heated air before it can get to the vents.

No matter what the reason for the problem is, Goode Bros AC & Heating in Katy can help you get your gas furnace up and running at an efficient level again. We can also help keep it running with regular, preventive maintenance. Contact us at (833)-466-3322 or book an appointment with us online and we’ll be there to help.