Why is My Gas Furnace Blowing Cold Air?

Heating

As the temps change, the more you feel the cool air gusting outside. And … right inside your house? If your gas furnace is blowing cold air and giving a chill to your Lawrence home, it’s time to reach out to Scott Temperature. Sometimes an absence of warm air from your gas furnace calls for 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 could be overheating

If you haven’t had regular maintenance done on your gas furnace recently and you’ve neglected to replace your air filter, either 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 might overheat and force the burner to shut down.

Your pilot light may have gone out

Sometimes 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, especially with older systems, for a draft to extinguish a pilot light. Other reasons for 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 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 battle 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 could be losing a lot of heated air before it can get to the vents.

No matter what the reason for the problem is, Scott Temperature in Lawrence can help you get your gas furnace up and working at an efficient level again. We can also help keep it running with routine, preventive maintenance. Call our experts at 785-269-0465 or arrange an appointment with us online and we’ll be there to help.

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