Why is My Gas Furnace Blowing Cold Air?

Heating

As the weather changes, the more you feel the colder air blowing outside. And … right inside your house? If your gas furnace is blowing cold air and giving a chill to your Ballwin home, it’s time to call Holiday Heating & Air Conditioning. Occasionally an absence of warm air from your gas furnace results in a large repair, but a lot of time it can be an easy fix. Here are several 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 regular maintenance performed on your gas furnace for some time and you’ve overlooked changing your air filter, both could be the reason why your furnace is blowing cool air. A dirty air filter can stop 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 breeze to put out a pilot light. Other factors when it comes to an extinguished pilot light are damaged gas valves or a faulty thermocouple.

Your furnace is dirty

Just as a dirty air filter can mean 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 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 might be losing a lot of heated air before it even reaches the vents throughout the home.

No matter what the reason for the problem is, Holiday Heating & Air Conditioning in Ballwin 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. Call our experts at 636-206-4250 or arrange an appointment with us online and we’ll be there to help.

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