rust flakes blocking the ports

or a tripped circuit breaker caused by an internal short in the heating coil

ensuring seamless mechanical continuity during retrofit or repair operations

ensuring reliable signal transmission for proportional temperature control

Lochinvar & A.O. Smith 100208175 Hi-Limit Refrigerant rust flakes blocking the portsMaintain critical safety parameters in your heating systems with the Lochinvar & A. O. Smith 100208175 Hi Limit. This 200F limit control is engineered to monitor water temperatures in high output boilers and commercial water heaters, providing a fail safe mechanical break if temperatures exceed the 200F threshold. Designed for professional field replacement, this 100208175 high limit switch prevents catastrophic heat exchanger damage by interrupting