Woman freezing cold in house

Why is My Gas Furnace Blowing Cold Air?

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 a lack of warm air from your gas furnace means a major repair, but often 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 warming up your house.

Your furnace could be overheating

If you haven’t had routine maintenance done on your gas furnace lately and you’ve neglected to replace your air filter, either could indicate why your furnace is blowing cold air. A dirty air filter can stop air from flowing freely through your furnace. If this occurs, 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 related to something as simple as a pilot light that’s gone out. It’s possible, particularly with older systems, for a draft to put out a pilot light. Other causes of 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 ever reaches your vents.

No matter what the root of 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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