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 … inside your home? If your gas furnace is blowing cold air and giving a chill to your Circleville home, it’s time to contact Stephen Hurst Pack Heating and Cooling, Inc. Sometimes a lack of warm air from your gas furnace results in a large 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 making your home warm and cozy.

Your furnace might be overheating

If you haven’t had ongoing maintenance performed 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 prevent air from flowing freely through your furnace. If that happens, the furnace may 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 furnaces, for a draft to smother a pilot light. Other factors when it comes to an extinguished pilot light are defective gas valves or a faulty thermocouple.

Your furnace is dirty

Just as a dirty air filter can cause 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 struggle 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 may be losing a lot of heated air before it ever reaches your vents.

No matter what the culprit of the problem is, Stephen Hurst Pack Heating and Cooling, Inc in Circleville 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. Give us a call at 740-474-5940 or book an appointment with us online and we’ll be there to help.