Why is My Gas Furnace Blowing Cold Air?

Heating

As the weather changes, the more you feel the colder air gusting outside. And … inside your home? If your gas furnace is blowing cold air and putting a chill to your Topeka home, it’s time to contact Custom Sheetmetal & Roofing, Inc.. Once in a while a lack of warm air from your gas furnace means a large repair, but a lot of time it can be a simple fix. Here are a few of the more common reasons your gas furnace may be blowing cold air instead of making your home warm and cozy.

Your furnace could be overheating

If you haven’t had routine maintenance completed on your gas furnace lately and you’ve neglected to replace your air filter, each could signal why your furnace is blowing colder air. A dirty air filter can prevent air from flowing freely through your furnace. When this happens, the furnace could 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, especially with older systems, for a gust of air to put out 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 challenges 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 battle 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 may be losing a lot of heated air before it ever reaches your vents.

No matter what the reason for the problem is, Custom Sheetmetal & Roofing, Inc. in Topeka can help you get your gas furnace up and working at an efficient level again. We can also help keep it running with ongoing, preventive maintenance. Contact us at 785-357-6200 or arrange an appointment with us online and we’ll be there to help.

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