Why is My Gas Furnace Blowing Cold Air?

November 13, 2018

As the seasons change, the more you feel the colder air blustering outside. And … right inside your house? If your gas furnace is blowing cold air and giving a chill to your Saint Petersburg home, it’s time to call Hale's Air Conditioning Services Inc. Once in a while the loss of warm air from your gas furnace calls for a large repair, but often it can be an easy 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 performed on your gas furnace lately and you’ve overlooked changing your air filter, both could indicate why your furnace is blowing cold air. A dirty air filter can stop air from flowing freely through your furnace. When this 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 furnaces, for a breeze to extinguish a pilot light. Other factors when it comes to 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 correctly cleaned. A dirty gas burner or flame sensor could cause your furnace to battle to stay lit and leave you in the cold.

Your ducts may not be properly sealed

When ducts are correctly sealed or if they have any cracks or holes in them, you could be losing a lot of heated air before it ever reaches your vents.

No matter what the reason for the problem is, Hale's Air Conditioning Services Inc in Saint Petersburg 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. Give us a call at 727-369-6195 or schedule an appointment with us online and we’ll be there to help.