Why is My Gas Furnace Blowing Cold Air?

Heating

As the seasons change, the more you feel the colder air blowing outside. And … in your home? If your gas furnace is blowing cold air and giving a chill to your Lincoln home, it’s time to contact AW Heating & Air Conditioning. Occasionally a lack of warm air from your gas furnace calls for a major repair, but a lot of time it can be a simple fix. Here are several 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 done on your gas furnace lately and you’ve forgotten to change your air filter, each could indicate 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 cause the burner to shut down.

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, especially with older furnaces, for a draft to extinguish a pilot light. Other reasons for an extinguished pilot light are faulty 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 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, AW Heating & Air Conditioning in Lincoln can help you get your gas furnace up and operating at an efficient level again. We can also help keep it running with ongoing, preventive maintenance. Contact us at 402-438-7992 or arrange an appointment with us online and we’ll be there to help.

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