Lochinvar & A.O. Smith 100208550 High Limit Switch

The Lochinvar & A.O. Smith 100208550 High Limit Switch is a Safety device required for water heaters and HVAC machines. It also checks the water temperature regularly and turns the heater off in case water gets to the point of overheating the heating element of the water tank. This switch is essential for both residential and commercial uses to guarantee safety and efficiency in operation. Besides increasing safety, it also reduces energy consumption and extends the life of your equipment and therefore reduces on repair and provides reliable service.