Why is My Gas Furnace Blowing Cold Air?

November 13, 2018

As the seasons change, the more you feel the cooler air blowing outside. And … in your home? If your gas furnace is blowing cold air and putting a chill to your Boynton Beach home, it’s time to call A2Z Air Inc. Once in a while a lack of warm air from your gas furnace results in a major repair, but many times it can be a small fix. Here are a few of the more common reasons your gas furnace could be blowing cold air instead of warming up your house.

Your furnace may be overheating

If you haven’t had regular 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 prevent air from flowing freely through your furnace. If this occurs, the furnace could overheat and cause 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 put out 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 cause challenges 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 could be losing a lot of heated air before it can get to the vents.

No matter what the culprit of the problem is, A2Z Air Inc in Boynton Beach 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. Give us a call at 561-270-6228 or schedule an appointment with us online and we’ll be there to help.