this spring provides the necessary linear feedback for stable medium-pressure steam or water flow regulation

For optimal performance and to prevent debris buildup in the pilot orifice

a "mushy" feel when rotating the dial

any attempt to alter the setpoints will compromise the component

Robertshaw 780-783 Ignition Module 30067439-890 this spring provides the necessaryThe Robertshaw 780 783 is a critical HSI ignition module engineered for high demand gas fired heating systems and commercial cooking applications. As a direct replacement for the HS78034PL308A, this unit utilizes standard 120V AC supply voltage and 24V AC control voltage to provide reliable hot surface ignition. Designed for versatile field application, it supports both local and remote flame sensing, ensuring a stable flame rectification signal