Why is My Gas Furnace Blowing Cold Air?

November 13, 2018

As the temps change, the more you feel the cool air blowing outside. And … inside your home? If your gas furnace is blowing cold air and giving a chill to your Cape Coral home, it’s time to contact Comfort Zone Inc. Sometimes the loss of warm air from your gas furnace means a large repair, but a lot of time it can be an easy 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 could be overheating

If you haven’t had routine maintenance done on your gas furnace for some time and you’ve forgotten to change your air filter, both could be the reason why your furnace is blowing cool air. A dirty air filter can prevent air from flowing freely through your furnace. If that happens, the furnace may 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 credited to something as simple as a pilot light that’s gone out. It’s possible, especially with older furnaces, for a gust of air to extinguish 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 issues 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 reduce the warmth inside your house.

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 even reaches the vents throughout the home.

No matter what the culprit of the problem is, Comfort Zone Inc in Cape Coral can help you get your gas furnace up and running at an efficient level again. We can also help keep it running with ongoing, preventive maintenance. Give us a call at 239-214-0411 or book an appointment with us online and we’ll be there to help.