What Is a Thermocouple on a Furnace and How to Fix It
If your heat suddenly cuts out on a freezing night, you might find yourself wondering what is a thermocouple on a furnace and why it's stopping your house from staying warm. It's a tiny, unassuming piece of hardware, but honestly, it's the only thing standing between you and a potentially dangerous gas leak. Most people never think about it until their furnace refuses to kick on, leaving them shivering in their living room. ...