DIY Solutions for Fixing a Furnace Blowing Cold Air

gas furnace burners

Expert advice on how to troubleshoot a furnace that is blowing cold air through air vents. Includes both gas and electric furnaces.  If your furnace is blowing cold air: 1. Check the thermostat 2. Check pilot light and ignition system 3. Inspect the flame sensor 4. Inspect air filters 5. Verify air vents (registers) 6. […]