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 … right inside your house? If your gas furnace is blowing cold air and giving a chill to your St. Cloud home, it’s time to reach out to Osceola Air, LLC. Occasionally an absence of warm air from your gas furnace means a major repair, but a lot of time it can be an easy fix. Here are several reasons your gas furnace could be blowing cold air instead of making your home warm and cozy.

Your furnace could be overheating

If you haven’t had regular maintenance completed on your gas furnace lately and you’ve forgotten to change your air filter, each could be the reason why your furnace is blowing cool air. A dirty air filter can block air from flowing freely through your furnace. If this occurs, the furnace might overheat and cause the burner to shut down.

Your pilot light may have gone out

It could be that a lack of warm air from your gas furnace can be credited to something as simple as a pilot light that’s gone out. It’s possible, particularly with older models, for a draft to extinguish 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 result in issues 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 not be able to bring warmth to your home.

Your ducts may not be properly sealed

When ducts are correctly sealed 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 culprit of the problem is, Osceola Air, LLC in St. Cloud can help you get your gas furnace up and working at an efficient level again. We can also help keep it running with ongoing, preventive maintenance. Give us a call at 407-477-6319 or book an appointment with us online and we’ll be there to help.