Why is My Gas Furnace Blowing Cold Air?

November 13, 2018

As the seasons change, 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 Haines City home, it’s time to call Air Commander's Heating & Air Conditioning Co.. Occasionally a lack of warm air from your gas furnace means a major repair, but often it can be an easy fix. Here are a few of the more common reasons your gas furnace could be blowing cold air instead of warming up your house.

Your furnace may be overheating

If you haven’t had routine maintenance completed on your gas furnace for some time and you’ve neglected to replace your air filter, both could signal why your furnace is blowing cold air. A dirty air filter can prevent air from flowing freely through your furnace. When this happens, the furnace may overheat and cause 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 related to something as simple as a pilot light that’s gone out. It’s possible, specifically with older systems, for a draft to smother 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 mean problems 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

When ducts are correctly sealed or if they have any cracks or holes in them, you could be losing a lot of heated air before it ever reaches your vents.

No matter what the culprit of the problem is, Air Commander's Heating & Air Conditioning Co. in Haines City can help you get your gas furnace up and running at an efficient level again. We can also help keep it running with routine, preventive maintenance. Call our experts at 863-216-2923 or arrange an appointment with us online and we’ll be there to help.