Amana-Goodman B1370919 Auto Limit Switch L170-30F

The Amana-Goodman B1370919 Auto Limit Switch is a temperature-sensitive safety control used to monitor and regulate heat levels between 140F and 170F in equipment. Positioned within furnace and air handling systems, it interrupts electrical operation when internal temperatures rise beyond the specified range and restores circuit continuity after temperatures return to normal levels. Integrated into residential and commercial HVAC systems. it assists in protecting heat exchangers and surrounding components from excessive heat exposure. Secured onto the heating assembly, the switch supports stable furnace operation, accurate temperature response, and dependable cycling during routine system use.