3 Possible Reasons Why Your Home's High-Efficiency Gas Furnace Is Blowing Cold Air
While your high-efficiency gas furnace is running, you may have realized that your house is not heating up the way it should. After further investigation, you may have found that cold air is coming out of the vents. If so, there are a few potential reasons why your home's furnace is blowing cold air, as well as possible solutions you can try. 1. Thermostat's Fan Setting Is Set to "On"