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 … in your home? If your gas furnace is blowing cold air and giving a chill to your Cedar Rapids home, it’s time to call Ilten's Incorporated. Sometimes a lack of warm air from your gas furnace results in a big repair, but often it can be a small fix. Here are several reasons your gas furnace might be blowing cold air instead of making your home warm and cozy.

Your furnace may be overheating

If you haven’t had regular maintenance done on your gas furnace recently and you’ve neglected to replace your air filter, either could signal why your furnace is blowing cool air. A dirty air filter can stop air from flowing freely through your furnace. When this happens, the furnace could 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 attributed to something as simple as a pilot light that’s gone out. It’s possible, particularly with older furnaces, for a gust of air to extinguish a pilot light. Other reasons for an extinguished pilot light are faulty 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 properly cleaned. A dirty gas burner or flame sensor could cause your furnace to struggle 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 ever reaches your vents.

No matter what the reason for the problem is, Ilten's Incorporated in Cedar Rapids can help you get your gas furnace up and operating at an efficient level again. We can also help keep it running with regular, preventive maintenance. Contact us at 319-208-3295 or schedule an appointment with us online and we’ll be there to help.