Woman freezing cold in house

Why is My Gas Furnace Blowing Cold Air?

As the temps 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 Saint Charles home, it’s time to contact Air Alliance Team. Once in a while the loss of warm air from your gas furnace means a large repair, but often it can be an easy fix. Here are a few of the more common reasons your gas furnace could be blowing cold air instead of making your home warm and cozy.

Your furnace may be overheating

If you haven’t had routine maintenance completed on your gas furnace recently and you’ve neglected to replace your air filter, each could indicate why your furnace is blowing colder air. A dirty air filter can stop air from flowing freely through your furnace. If that happens, the furnace might overheat and force 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 furnaces, for a draft to extinguish 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 problems 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 leave you in the cold.

Your ducts may not be properly sealed

When ducts are correctly sealed or if they have any cracks or holes in them, you might be losing a lot of heated air before it can get to the vents.

No matter what the culprit of the problem is, Air Alliance Team in Saint Charles can help you get your gas furnace up and operating at an efficient level again. We can also help keep it running with regular, preventive maintenance. Contact us at 636-229-1544 or schedule an appointment with us online and we’ll be there to help.

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