Why is My Gas Furnace Blowing Cold Air?

November 13, 2018

As the temps change, the more you feel the cool air blustering outside. And … inside your home? If your gas furnace is blowing cold air and putting a chill to your Brookfield home, it’s time to contact Central Air LLC. Occasionally the loss of warm air from your gas furnace results in a major repair, but a lot of time it can be a small fix. Here are a few of the more common 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 ongoing maintenance performed on your gas furnace lately and you’ve forgotten to change 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 that happens, the furnace may overheat and cause the burner to shut down.

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 systems, for a draft to smother a pilot light. Other causes of an extinguished pilot light are defective gas valves or a faulty thermocouple.

Your furnace is dirty

Just as a dirty air filter can result in challenges 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 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 even reaches the vents throughout the home.

No matter what the reason for the problem is, Central Air LLC in Brookfield 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 203-357-5913 or book an appointment with us online and we’ll be there to help.