Why is My Gas Furnace Blowing Cold Air?

November 13, 2018

As the weather changes, the more you feel the colder air blowing outside. And … right inside your house? If your gas furnace is blowing cold air and putting a chill to your South Beloit and Belvidere home, it’s time to contact Fleming Heating & Air Conditioning Inc. Sometimes an absence of warm air from your gas furnace results in a major repair, but often it can be a small fix. Here are several reasons your gas furnace might be blowing cold air instead of making your home warm and cozy.

Your furnace might be overheating

If you haven’t had routine maintenance completed 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 cool air. A dirty air filter can prevent air from flowing freely through your furnace. When this happens, the furnace could overheat and shut down its burner.

Your pilot light may have gone out

It’s probable 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, particularly with older models, for a breeze 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 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 fight to stay lit and reduce the warmth inside your house.

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

No matter what the reason for the problem is, Fleming Heating & Air Conditioning Inc in South Beloit and Belvidere can help you get your gas furnace up and working at an efficient level again. We can also help keep it running with routine, preventive maintenance. Contact us at 877-389-2465 or arrange an appointment with us online and we’ll be there to help.