Replacement Sensor

This primary limit switch is a direct replacement for the Goodman 20162903SP and compatible equipment, designed to provide critical temperature monitoring and safety protection in furnace systems. The switch automatically opens its circuit when temperatures reach the 150-160 Degrees F threshold, effectively preventing dangerous overheating conditions and hazardous carbon monoxide accumulation within HVAC units. Featuring automatic reset functionality, this switch continuously monitors furnace operation and restores circuit continuity once temperatures return to safe levels, ensuring reliable ongoing protection without manual intervention. Compact in design with dimensions of 0.85 inches in height, 1.45 inches in width, and 1.7 inches in depth, this component integrates seamlessly into existing furnace assemblies. The switch's dual-purpose CO limit functionality makes it an essential safety component for commercial and residential heating applications where temperature regulation and hazard prevention are critical. This replacement part meets OEM specifications and is suitable for technicians and HVAC professionals performing maintenance, repair, or system replacement work on Goodman furnaces and compatible units. Proper installation of this limit switch helps maintain system integrity and compliance with safety standards while reducing the risk of equipment damage and safety incidents related to thermal runaway conditions.