Why is My Gas Furnace Blowing Cold Air?

November 13, 2018

As the temps change, the more you feel the cooler air blustering outside. And … in your home? If your gas furnace is blowing cold air and giving a chill to your Perry home, it’s time to contact Gillman Heating and Air. Occasionally a lack of warm air from your gas furnace means a major repair, but a lot of time it can be a small fix. Here are several reasons your gas furnace may be blowing cold air instead of making your home warm and cozy.

Your furnace may be overheating

If you haven’t had ongoing maintenance completed on your gas furnace recently and you’ve overlooked changing your air filter, either could be the reason 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 could overheat and force 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 systems, for a draft to put out a pilot light. Other causes of an extinguished pilot light are damaged gas valves or a faulty thermocouple.

Your furnace is dirty

Just as a dirty air filter can result in issues 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 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 could be losing a lot of heated air before it can get to the vents.

No matter what the culprit of the problem is, Gillman Heating and Air in Perry can help you get your gas furnace up and operating at an efficient level again. We can also help keep it running with ongoing, preventive maintenance. Contact us at 478-202-3076 or schedule an appointment with us online and we’ll be there to help.