Why is My Gas Furnace Blowing Cold Air?

Heating

As the weather changes, the more you feel the cool air gusting outside. And … right inside your house? If your gas furnace is blowing cold air and giving a chill to your Moline home, it’s time to reach out to J.L. Brady Company LLC. Sometimes a lack of warm air from your gas furnace means a major repair, but a lot of time it can be a small fix. Here are a few of the more common reasons your gas furnace may be blowing cold air instead of warming up your house.

Your furnace might be overheating

If you haven’t had ongoing maintenance performed on your gas furnace recently and you’ve overlooked changing your air filter, both could signal why your furnace is blowing colder air. A dirty air filter can stop air from flowing freely through your furnace. When this happens, the furnace may overheat and force the burner to shut down.

Your pilot light may have gone out

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

Your furnace is dirty

Just as a dirty air filter can cause challenges for your gas furnace, so can other furnace components if they aren’t properly cleaned. A dirty gas burner or flame sensor could cause your furnace to battle to stay lit and not be able to bring warmth to your home.

Your ducts may not be properly sealed

When ducts are correctly 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 culprit of the problem is, J.L. Brady Company LLC in Moline can help you get your gas furnace up and running at an efficient level again. We can also help keep it running with ongoing, preventive maintenance. Give us a call at 309-517-7511 or schedule an appointment with us online and we’ll be there to help.

Back To Blog