Why is My Gas Furnace Blowing Cold Air?

Heating

As the weather changes, the more you feel the colder air gusting outside. And … inside your home? If your gas furnace is blowing cold air and putting a chill to your Winchester home, it’s time to reach out to Thornberry Bros Inc. Once in a while a lack of warm air from your gas furnace calls for a major repair, but many times 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 could be overheating

If you haven’t had ongoing maintenance completed on your gas furnace recently and you’ve forgotten to change your air filter, either could signal why your furnace is blowing colder air. A dirty air filter can block air from flowing freely through your furnace. When this happens, 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, specifically with older models, for a gust of air to smother a pilot light. Other reasons for 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 appropriately cleaned. A dirty gas burner or flame sensor could cause your furnace to struggle to stay lit and leave you in the cold.

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, Thornberry Bros Inc in Winchester can help you get your gas furnace up and running at an efficient level again. We can also help keep it running with routine, preventive maintenance. Give us a call at 859-745-1564 or book an appointment with us online and we’ll be there to help.

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