Woman freezing cold in house

Why is My Gas Furnace Blowing Cold Air?

As the seasons change, the more you feel the cool air blustering outside. And … in your home? If your gas furnace is blowing cold air and putting a chill to your Shreveport home, it’s time to contact Moon's Air. Sometimes an absence of warm air from your gas furnace results in a big repair, but often 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 making your home warm and cozy.

Your furnace may be overheating

If you haven’t had routine maintenance done on your gas furnace recently and you’ve forgotten to change your air filter, either could indicate why your furnace is blowing cold air. A dirty air filter can block air from flowing freely through your furnace. If this occurs, the furnace might overheat and cause the burner to shut down.

Your pilot light may have gone out

Sometimes 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, specifically with older systems, for a gust of air to put out a pilot light. Other causes of an extinguished pilot light are defective gas valves or a faulty thermocouple.

Your furnace is dirty

Just as a dirty air filter can result in problems 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 fight to stay lit and reduce the warmth inside your house.

Your ducts may not be properly sealed

If your ducts aren’t sealed properly 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, Moon's Air in Shreveport 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 318-215-7938 or book an appointment with us online and we’ll be there to help.

Back To Blog