With the change of the season, you will feel the cool air blowing outside more and more! And … in your home? If your gas gas furnace is blowing cold air and adding a chill to the air inside your home, it’s time to call a professional, however in the event that you haven’t had your gas furnace’s routine service completed for some time and you have neglected to update your air filter, either of these could indicate the reason why your gas furnace is blowing cold air, however there is a chance that a dirty air filter can prevent air from flowing freely through your gas furnace.
This can lead to the gas furnace overheating and the burner shutting down due to overheating.
A lack of hot air from your gas furnace can occasionally be attributed to something as simple as a pilot light that has gone out, particularly with older gas furnaces, it is possible for a draft to cause the pilot light to go out. Besides faulty gas valves or a faulty thermocouple, there are other reasons for an extinguished pilot light. A dirty air filter can cause problems for your gas furnace, just as other gas furnace components can cause problems if they aren’t respectfully taken care of. It could be that a dirty gas burner or a dirty flame sensor is causing your gas furnace to struggle to keep lit, thus reducing the amount of heat inside your home, and you could be losing a lot of heated air just before it reaches the vents throughout the house if the ducts are incorrectly sealed or if they have any cracks or holes in them.