Why is My Gas Furnace Blowing Cold Air?

Heating

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 adding a chill to your Auburn home, it’s time to reach out to Forster Heating. Once in a while an absence of warm air from your gas furnace results in a large repair, but many times it can be a simple fix. Here are some of the main reasons your gas furnace may be blowing cold air instead of making your home warm and cozy.

Your furnace might be overheating

If you haven’t had ongoing maintenance performed on your gas furnace for some time and you’ve forgotten to change your air filter, either could indicate 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 could overheat and shut down its burner.

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, especially with older systems, for a breeze to extinguish 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 appropriately cleaned. A dirty gas burner or flame sensor could cause your furnace to battle to stay lit and reduce the warmth inside your house.

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 may be losing a lot of heated air before it even reaches the vents throughout the home.

No matter what the root of the problem is, Forster Heating in Auburn 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. Contact us at 530-885-8081 or schedule an appointment with us online and we’ll be there to help.

Back To Blog