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 Portland Metro home, it’s time to contact Central Air Inc. Once in a while an absence of warm air from your gas furnace calls for a major repair, but many times it can be an easy fix. Here are several reasons your gas furnace may be blowing cold air instead of keeping your home toasty.

Your furnace might be overheating

If you haven’t had regular maintenance performed on your gas furnace lately and you’ve forgotten to change your air filter, each could signal 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 shut down its burner.

Your pilot light may have gone out

It could be that 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 gust of air to smother a pilot light. Other factors when it comes to an extinguished pilot light are damaged gas valves or a faulty thermocouple.

Your furnace is dirty

Just as a dirty air filter can cause challenges 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

When ducts are correctly sealed 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, Central Air Inc in Portland Metro 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 503-389-5307 or schedule an appointment with us online and we’ll be there to help.

Back To Blog