Why is My Gas Furnace Blowing Cold Air?

Heating

As the seasons change, the more you feel the colder air gusting outside. And … right inside your house? If your gas furnace is blowing cold air and adding a chill to your Robstown home, it’s time to contact McNatt Inc. Once in a while the loss of warm air from your gas furnace calls for a major repair, but a lot of time it can be an easy fix. Here are some of the main reasons your gas furnace may be blowing cold air instead of warming up your house.

Your furnace may be overheating

If you haven’t had ongoing maintenance completed on your gas furnace recently and you’ve forgotten to change your air filter, both could signal why your furnace is blowing colder air. A dirty air filter can block 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 related to something as simple as a pilot light that’s gone out. It’s possible, especially with older systems, for a gust of air to put out a pilot light. Other reasons for an extinguished pilot light are defective gas valves or a faulty thermocouple.

Your furnace is dirty

Just as a dirty air filter can mean issues 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 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 could 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, McNatt Inc in Robstown 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. Give us a call at 361-888-4808 or arrange an appointment with us online and we’ll be there to help.

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