Why is My Gas Furnace Blowing Cold Air?

November 13, 2018

As the temps change, the more you feel the cool air blowing outside. And … in your home? If your gas furnace is blowing cold air and adding a chill to your West Columbia home, it’s time to contact Tri City Fuel & Heating Co., Inc.. Sometimes the loss of warm air from your gas furnace calls for a major repair, but a lot of time it can be a small fix. Here are some of the main reasons your gas furnace could be blowing cold air instead of making your home warm and cozy.

Your furnace might be overheating

If you haven’t had routine maintenance completed on your gas furnace recently and you’ve forgotten to change your air filter, each 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

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, especially with older furnaces, for a breeze 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 cause issues for your gas furnace, so can other furnace components if they aren’t properly cleaned. A dirty gas burner or flame sensor could cause your furnace to fight to stay lit and leave you in the cold.

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 ever reaches your vents.

No matter what the culprit of the problem is, Tri City Fuel & Heating Co., Inc. in West Columbia can help you get your gas furnace up and operating at an efficient level again. We can also help keep it running with routine, preventive maintenance. Give us a call at 803-265-4208 or book an appointment with us online and we’ll be there to help.