Why is My Gas Furnace Blowing Cold Air?

Heating

As the weather changes, the more you feel the colder air gusting outside. And … in your home? If your gas furnace is blowing cold air and giving a chill to your Midlothian home, it’s time to contact Daniel's Heating & Refrigeration Corp.. Occasionally the loss of warm air from your gas furnace results in a major repair, but many times it can be a simple fix. Here are a few of the more common reasons your gas furnace might be blowing cold air instead of keeping your home toasty.

Your furnace may be overheating

If you haven’t had regular maintenance performed on your gas furnace for some time and you’ve neglected to replace your air filter, either could signal why your furnace is blowing colder air. A dirty air filter can stop air from flowing freely through your furnace. If this occurs, the furnace may 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 credited to something as simple as a pilot light that’s gone out. It’s possible, especially with older furnaces, for a gust of air 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 challenges for your gas furnace, so can other furnace components if they aren’t correctly cleaned. A dirty gas burner or flame sensor could cause your furnace to struggle 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 could 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, Daniel's Heating & Refrigeration Corp. in Midlothian 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. Call our experts at 804-372-0313 or arrange an appointment with us online and we’ll be there to help.

Back To Blog