Why is My Gas Furnace Blowing Cold Air?

Heating

As the weather changes, the more you feel the cool air gusting outside. And … right inside your house? If your gas furnace is blowing cold air and putting a chill to your Greencastle home, it’s time to reach out to Premier HVAC Services LLC. Occasionally an absence of warm air from your gas furnace results in a large repair, but a lot of time it can be an easy 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 regular maintenance done on your gas furnace lately and you’ve forgotten to change your air filter, each could indicate why your furnace is blowing cold air. A dirty air filter can block air from flowing freely through your furnace. If this occurs, the furnace might 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, specifically with older furnaces, for a breeze to extinguish a pilot light. Other causes of an extinguished pilot light are faulty gas valves or a faulty thermocouple.

Your furnace is dirty

Just as a dirty air filter can cause problems for your gas furnace, so can other furnace components if they aren’t properly cleaned. A dirty gas burner or flame sensor could cause your furnace to fight to stay lit and not be able to bring warmth to your home.

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 reason for the problem is, Premier HVAC Services LLC in Greencastle can help you get your gas furnace up and operating at an efficient level again. We can also help keep it running with routine, preventive maintenance. Give us a call at 717-461-8113 or arrange an appointment with us online and we’ll be there to help.

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