Woman freezing cold in house

Why is My Gas Furnace Blowing Cold Air?

As the weather changes, 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 Des Moines home, it’s time to contact Kohles & Bach Heating & Cooling. Occasionally the loss of warm air from your gas furnace means a large repair, but often it can be an easy fix. Here are several reasons your gas furnace could be blowing cold air instead of keeping your home toasty.

Your furnace might be overheating

If you haven’t had routine maintenance performed on your gas furnace lately and you’ve neglected to replace your air filter, both could signal why your furnace is blowing cold air. A dirty air filter can block air from flowing freely through your furnace. If that 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 credited to something as simple as a pilot light that’s gone out. It’s possible, especially with older models, for a draft to smother 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 correctly 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

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 ever reaches your vents.

No matter what the reason for the problem is, Kohles & Bach Heating & Cooling in Des Moines can help you get your gas furnace up and operating at an efficient level again. We can also help keep it running with regular, preventive maintenance. Give us a call at 515-207-6569 or schedule an appointment with us online and we’ll be there to help.

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