Woman freezing cold in house

Why is My Gas Furnace Blowing Cold Air?

As the seasons change, the more you feel the cooler air blustering outside. And … in your home? If your gas furnace is blowing cold air and putting a chill to your Mankato area home, it’s time to contact Northern Comfort Inc. Occasionally an absence of warm air from your gas furnace means a big repair, but many times it can be a small fix. Here are some of the main reasons your gas furnace might be blowing cold air instead of making your home warm and cozy.

Your furnace may be overheating

If you haven’t had ongoing maintenance completed on your gas furnace lately and you’ve forgotten to change your air filter, both could signal why your furnace is blowing colder air. A dirty air filter can prevent air from flowing freely through your furnace. If this occurs, the furnace might 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 credited 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 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 cause 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

When ducts are correctly sealed or if they have any cracks or holes in them, you could be losing a lot of heated air before it ever reaches your vents.

No matter what the culprit of the problem is, Northern Comfort Inc in Mankato area can help you get your gas furnace up and running at an efficient level again. We can also help keep it running with regular, preventive maintenance. Give us a call at 507-307-4818 or book an appointment with us online and we’ll be there to help.

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