Why is My Gas Furnace Blowing Cold Air?

Heating

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 Keokuk home, it’s time to contact WM J Kraus & Son. Sometimes a lack of warm air from your gas furnace calls for a big repair, but many times it can be an easy fix. Here are several 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 routine maintenance done on your gas furnace recently and you’ve forgotten to change your air filter, each could be the reason why your furnace is blowing cool air. A dirty air filter can block 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

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, particularly with older models, for a breeze to put out 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 cause issues 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 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 could be losing a lot of heated air before it can get to the vents.

No matter what the culprit of the problem is, WM J Kraus & Son in Keokuk can help you get your gas furnace up and working at an efficient level again. We can also help keep it running with ongoing, preventive maintenance. Contact us at 319-229-2318 or arrange an appointment with us online and we’ll be there to help.

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