Why is My Gas Furnace Blowing Cold Air?

Heating

As the weather changes, the more you feel the cool air blowing outside. And … inside your home? If your gas furnace is blowing cold air and putting a chill to your McHenry home, it’s time to contact Jett's Heating & Air Inc.. Sometimes a lack of warm air from your gas furnace calls for a big repair, but a lot of time it can be a simple fix. Here are a few of the more common reasons your gas furnace could be blowing cold air instead of making your home warm and cozy.

Your furnace could be overheating

If you haven’t had regular maintenance completed on your gas furnace for some time and you’ve forgotten to change your air filter, each 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 this occurs, 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 related 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 extinguish a pilot light. Other factors when it comes to 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 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 not be able to bring warmth to your home.

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 can get to the vents.

No matter what the culprit of the problem is, Jett's Heating & Air Inc. in McHenry can help you get your gas furnace up and running at an efficient level again. We can also help keep it running with ongoing, preventive maintenance. Give us a call at 815-410-1128 or arrange an appointment with us online and we’ll be there to help.

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