Woman freezing cold in house

Why is My Gas Furnace Blowing Cold Air?

As the temps change, the more you feel the cooler air gusting outside. And … right inside your house? If your gas furnace is blowing cold air and giving a chill to your Pocatello home, it’s time to call Vogts Heating & Air. Occasionally an absence of warm air from your gas furnace means a big repair, but many times it can be a simple fix. Here are some of the main reasons your gas furnace might be blowing cold air instead of warming up your house.

Your furnace could be overheating

If you haven’t had ongoing maintenance done on your gas furnace for some time and you’ve overlooked changing your air filter, both 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 could 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 credited to something as simple as a pilot light that’s gone out. It’s possible, specifically with older models, for a draft to put out a pilot light. Other factors when it comes to an extinguished pilot light are faulty 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 correctly cleaned. A dirty gas burner or flame sensor could cause your furnace to fight to stay lit and reduce the warmth inside your house.

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 may be losing a lot of heated air before it can get to the vents.

No matter what the culprit of the problem is, Vogts Heating & Air in Pocatello 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. Call our experts at 208-621-0129 or book an appointment with us online and we’ll be there to help.

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