Why is My Gas Furnace Blowing Cold Air?

November 13, 2018

As the seasons change, the more you feel the cool air blowing outside. And … right inside your house? If your gas furnace is blowing cold air and adding a chill to your Anaheim home, it’s time to reach out to Eco Fresh HVAC Inc.. Once in a while an absence of warm air from your gas furnace calls for a big repair, but often it can be a simple fix. Here are some of the main reasons your gas furnace could be blowing cold air instead of keeping your home toasty.

Your furnace could be overheating

If you haven’t had routine maintenance completed on your gas furnace recently and you’ve overlooked changing your air filter, either could be the reason why your furnace is blowing colder air. A dirty air filter can block air from flowing freely through your furnace. If that happens, the furnace might overheat and cause the burner to shut down.

Your pilot light may have gone out

Sometimes 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 models, for a draft to put out a pilot light. Other causes of 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 appropriately cleaned. A dirty gas burner or flame sensor could cause your furnace to fight to stay lit and reduce the warmth inside your house.

Your ducts may not be properly sealed

If your ducts aren’t properly sealed 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 reason for the problem is, Eco Fresh HVAC Inc. in Anaheim 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. Give us a call at 714-855-1717 or arrange an appointment with us online and we’ll be there to help.