Why is My Gas Furnace Blowing Cold Air?

November 13, 2018

As the temps change, the more you feel the colder air gusting outside. And … in your home? If your gas furnace is blowing cold air and adding a chill to your Hattiesburg home, it’s time to contact Oak Grove Heating & Air Conditioning. Once in a while a lack of warm air from your gas furnace results in a large repair, but often it can be an easy fix. Here are several reasons your gas furnace might be blowing cold air instead of keeping your home toasty.

Your furnace could 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, 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 might 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 attributed to something as simple as a pilot light that’s gone out. It’s possible, specifically with older models, for a breeze to extinguish a pilot light. Other factors when it comes to 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 battle 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 could be losing a lot of heated air before it can get to the vents.

No matter what the reason for the problem is, Oak Grove Heating & Air Conditioning in Hattiesburg 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. Contact us at 601-292-9763 or arrange an appointment with us online and we’ll be there to help.