Why is My Gas Furnace Blowing Cold Air?

Heating

As the temps change, the more you feel the cooler air blustering outside. And … right inside your house? If your gas furnace is blowing cold air and adding a chill to your Libertyville home, it’s time to contact Toptec Heating, Cooling, Plumbing & Electrical. Sometimes a lack of warm air from your gas furnace results in a major repair, but a lot of time it can be a simple fix. Here are some of the main reasons your gas furnace might be blowing cold air instead of keeping your home toasty.

Your furnace might be overheating

If you haven’t had regular maintenance completed on your gas furnace recently and you’ve forgotten to change your air filter, each could be the reason why your furnace is blowing colder air. A dirty air filter can prevent air from flowing freely through your furnace. If that happens, the furnace may 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 attributed 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 put out 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 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 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 might be losing a lot of heated air before it even reaches the vents throughout the home.

No matter what the culprit of the problem is, Toptec Heating, Cooling, Plumbing & Electrical in Libertyville 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. Give us a call at 847-362-0262 or arrange an appointment with us online and we’ll be there to help.

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