Goodman B1370198 Furnace Primary Limit Switch 150F

The Goodman B1370198 Furnace Primary Limit Switch 150F is a temperature safety control component used in systems to monitor and regulate internal heat levels. It works by detecting excessive temperatures within the heating assembly and interrupting electrical operation when the preset limit of 150 degrees Fahrenheit is reached to prevent overheating of essential furnace components. It is installed near the heat exchanger or burner compartment, where it connects to the furnace control circuit and sensing system. It allows safe temperature regulation, supports coordinated heating operation, and maintains proper performance of the furnace during heating cycles.