Why is My Gas Furnace Blowing Cold Air?

Heating

As the temps change, the more you feel the cool air blowing outside. And … in your home? If your gas furnace is blowing cold air and putting a chill to your York home, it’s time to call Strine's Heating & A/C Inc. Once in a while the loss of warm air from your gas furnace results in a large repair, but many times it can be a small fix. Here are a few of the more common reasons your gas furnace might be blowing cold air instead of keeping your home toasty.

Your furnace may be overheating

If you haven’t had regular maintenance completed on your gas furnace lately and you’ve overlooked changing your air filter, each could be the reason why your furnace is blowing cold air. A dirty air filter can stop air from flowing freely through your furnace. If this occurs, the furnace might overheat and shut down its burner.

Your pilot light may have gone out

Sometimes a lack of warm air from your gas furnace can be credited to something as simple as a pilot light that’s gone out. It’s possible, specifically with older furnaces, for a gust of air to smother 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 mean 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 fight to stay lit and leave you in the cold.

Your ducts may not be properly sealed

If your ducts aren’t properly sealed or if they have any cracks or holes in them, you may be losing a lot of heated air before it can get to the vents.

No matter what the reason for the problem is, Strine's Heating & A/C Inc in York can help you get your gas furnace up and operating at an efficient level again. We can also help keep it running with ongoing, preventive maintenance. Call our experts at 717-755-4127 or arrange an appointment with us online and we’ll be there to help.

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