Woman freezing cold in house

Why is My Gas Furnace Blowing Cold Air?

As the weather changes, the more you feel the cool air blowing outside. And … in your home? If your gas furnace is blowing cold air and giving a chill to your Tucker home, it’s time to call ACS Heating and Air Conditioning. Sometimes an absence of warm air from your gas furnace results in a big repair, but often it can be a simple 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 routine maintenance performed on your gas furnace for some time and you’ve overlooked changing your air filter, both could be the reason why your furnace is blowing colder air. A dirty air filter can prevent air from flowing freely through your furnace. If that happens, the furnace might overheat and force 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 draft to extinguish a pilot light. Other causes of 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 appropriately cleaned. A dirty gas burner or flame sensor could cause your furnace to struggle to stay lit and leave you in the cold.

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 can get to the vents.

No matter what the reason for the problem is, ACS Heating and Air Conditioning in Tucker can help you get your gas furnace up and running at an efficient level again. We can also help keep it running with regular, preventive maintenance. Give us a call at 770-450-1539 or schedule an appointment with us online and we’ll be there to help.

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