120-702

Ensure your heating system operates safely and efficiently with this professional-grade Fan Limit Switch. Designed for high-performance HVAC and furnace applications, this temperature-sensitive snap disc acts as both a functional controller and a critical safety device. It automatically regulates the blower fan's operation, ensuring the fan activates and deactivates at the correct temperatures to maximize airflow efficiency and home comfort. Additionally, it serves as a high-limit safety cut-off, protecting your furnace's heat exchanger by shutting down the burner if internal temperatures exceed safe operating levels. This part is a vital replacement for resolving issues such as a furnace fan running continuously, a blower that refuses to start, or a heating system that cycles off prematurely due to overheating.
Type: Fan Disc / High Limit Control Switch
Size: Small
Application: Residential gas and electric furnaces, forced-air heating systems, and HVAC units requiring automated fan control and thermal safety protection.
Specifications: Snap-action disc technology; Dual temperature setpoints (90/110) for fan and limit regulation; Fixed temperature calibration for reliable system cycling.