Why Is Your Furnace Blowing Cold Air? Troubleshooting and Solutions Furnace Blows Hot Then Cold
In this video, I'll walk you through diagnosing why your furnace is blowing cold air instead of heat. We'll explore common causes This issue often stems from a malfunctioning flame sensor or clogged air filter. The flame sensor may fail to detect the burner flame, causing the furnace to Furnace Not Blowing Hot Air - Explained | Repair and Replace ...