Woman freezing cold in house

Why is My Gas Furnace Blowing Cold Air?

As the temps change, the more you feel the cool air blowing outside. And … right inside your house? If your gas furnace is blowing cold air and putting a chill to your Rochester home, it’s time to call Brogan Heating & AC Inc. Occasionally the loss of warm air from your gas furnace means a major repair, but many times it can be a simple fix. Here are some of the main reasons your gas furnace might 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 overlooked changing your air filter, each could be the reason why your furnace is blowing cold air. A dirty air filter can prevent air from flowing freely through your furnace. If this occurs, the furnace could 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 attributed to something as simple as a pilot light that’s gone out. It’s possible, especially with older furnaces, for a gust of air to put out a pilot light. Other factors when it comes to an extinguished pilot light are faulty gas valves or a faulty thermocouple.

Your furnace is dirty

Just as a dirty air filter can mean 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 battle to stay lit and not be able to bring warmth to your home.

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 could be losing a lot of heated air before it can get to the vents.

No matter what the root of the problem is, Brogan Heating & AC Inc in Rochester 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 507-218-0088 or book an appointment with us online and we’ll be there to help.

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