Woman freezing cold in house

Why is My Gas Furnace Blowing Cold Air?

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 putting a chill to your West Jefferson home, it’s time to call West Jefferson Plumbing and Heating, Inc.. Sometimes an absence of warm air from your gas furnace means a big 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 could be overheating

If you haven’t had regular maintenance done on your gas furnace for some time and you’ve overlooked changing your air filter, either could signal why your furnace is blowing cold air. A dirty air filter can stop air from flowing freely through your furnace. If this occurs, the furnace could overheat and cause 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 systems, 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 result in challenges 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 battle 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 even reaches the vents throughout the home.

No matter what the culprit of the problem is, West Jefferson Plumbing and Heating, Inc. in West Jefferson can help you get your gas furnace up and working at an efficient level again. We can also help keep it running with ongoing, preventive maintenance. Give us a call at 614-450-1575 or book an appointment with us online and we’ll be there to help.

Back To Blog