Woman freezing cold in house

Why is My Gas Furnace Blowing Cold Air?

As the weather changes, the more you feel the cooler air blowing outside. And … right inside your house? If your gas furnace is blowing cold air and putting a chill to your Greater Richmond home, it’s time to contact Herman Allen Plumbing, Heating & Cooling. Occasionally a lack of warm air from your gas furnace results in a large repair, but often it can be a small fix. Here are a few of the more common reasons your gas furnace may be blowing cold air instead of making your home warm and cozy.

Your furnace might be overheating

If you haven’t had routine maintenance completed on your gas furnace for some time and you’ve forgotten to change your air filter, either could signal why your furnace is blowing cool air. A dirty air filter can stop air from flowing freely through your furnace. If this occurs, the furnace could overheat and force the burner to shut down.

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 systems, for a gust of air 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 correctly 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 might be losing a lot of heated air before it even reaches the vents throughout the home.

No matter what the reason for the problem is, Herman Allen Plumbing, Heating & Cooling in Greater Richmond can help you get your gas furnace up and running at an efficient level again. We can also help keep it running with routine, preventive maintenance. Call our experts at 804-302-6657 or book an appointment with us online and we’ll be there to help.

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