Your Furnace's Flame Sensor: What It Does And How To Keep It Working For You
Many furnaces have a flame sensor. The flame sensor is a safety mechanism that your furnace uses to detect if there's a flame or not. Understanding what it does and how you can fix it can help you keep your furnace working for you while avoiding costly repair bills. The Flame Sensor…Senses Flames The flame sensor on your furnace detects the presence of a flame through the process of flame rectification.