120-721

This high-quality 150-degree furnace high limit control switch is a critical safety component for residential heating systems. Designed as a fan disc switch, its primary function is to monitor the internal temperature of your furnace. If the unit exceeds 150°F, the switch automatically cuts power to the burner or heating elements, preventing dangerous overheating and potential system damage. This replacement part is ideal for HVAC maintenance and repair, helping to restore safe operation to gas or electric furnaces. Replacing a faulty limit switch can resolve common heating issues such as short-cycling or a blower fan that refuses to shut off. Built for long-lasting reliability and precision thermal sensing, this limit control ensures your home heating equipment operates within safe temperature parameters.
Type: High Limit Control Switch
Size: Small
Application: Residential gas furnaces, electric heating systems, and HVAC units requiring thermal safety protection.
Specifications: 150-degree Fahrenheit fixed temperature trip point, disc-style thermal sensor, safety shut-off functionality.