Why is My Gas Furnace Blowing Cold Air?

Heating

As the temps change, the more you feel the cool air blustering outside. And … in your home? If your gas furnace is blowing cold air and adding a chill to your Olathe home, it’s time to call Polestar Plumbing, Heating & Air Conditioning. Occasionally a lack of warm air from your gas furnace results in a large 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 ongoing maintenance performed on your gas furnace recently and you’ve overlooked changing your air filter, either could be the reason why your furnace is blowing cool air. A dirty air filter can stop air from flowing freely through your furnace. If that 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 related to something as simple as a pilot light that’s gone out. It’s possible, especially with older furnaces, for a draft to put out a pilot light. Other reasons for an extinguished pilot light are damaged 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 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 even reaches the vents throughout the home.

No matter what the root of the problem is, Polestar Plumbing, Heating & Air Conditioning in Olathe can help you get your gas furnace up and working at an efficient level again. We can also help keep it running with regular, preventive maintenance. Give us a call at 913-432-3342 or arrange an appointment with us online and we’ll be there to help.

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