Woman freezing cold in house

Why is My Gas Furnace Blowing Cold Air?

As the seasons change, the more you feel the cooler air gusting outside. And … in your home? If your gas furnace is blowing cold air and adding a chill to your Carpentersville home, it’s time to call Controlled Comfort HVAC Inc. Sometimes an absence of warm air from your gas furnace results in a big repair, but many times it can be a simple fix. Here are a few of the more common reasons your gas furnace could be blowing cold air instead of keeping your home toasty.

Your furnace may be overheating

If you haven’t had routine maintenance done on your gas furnace recently and you’ve forgotten to change your air filter, either could be the reason why your furnace is blowing colder air. A dirty air filter can stop air from flowing freely through your furnace. When this happens, the furnace might overheat and force 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 breeze to smother a pilot light. Other causes of 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

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 ever reaches your vents.

No matter what the culprit of the problem is, Controlled Comfort HVAC Inc in Carpentersville can help you get your gas furnace up and working at an efficient level again. We can also help keep it running with routine, preventive maintenance. Contact us at 224-412-8308 or schedule an appointment with us online and we’ll be there to help.

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