Why is My Gas Furnace Blowing Cold Air?

Heating

As the weather changes, the more you feel the colder air blustering outside. And … in your home? If your gas furnace is blowing cold air and adding a chill to your Richardson home, it’s time to call Hammack Service Company. Sometimes the loss of warm air from your gas furnace means a big repair, but a lot of time it can be a small fix. Here are several reasons your gas furnace might be blowing cold air instead of warming up your house.

Your furnace might be overheating

If you haven’t had ongoing maintenance completed on your gas furnace recently and you’ve neglected to replace your air filter, either could signal 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 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, particularly with older systems, for a breeze to put out 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 cause challenges 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 sealed properly or if they have any cracks or holes in them, you might be losing a lot of heated air before it even reaches the vents throughout the home.

No matter what the culprit of the problem is, Hammack Service Company in Richardson can help you get your gas furnace up and working at an efficient level again. We can also help keep it running with ongoing, preventive maintenance. Give us a call at 972-351-8874 or arrange an appointment with us online and we’ll be there to help.

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