checking this flame rod for carbon buildup or a cracked ceramic insulator is a standard diagnostic step

the SP10399B provides a stable

This specific part is a #45 drill size orifice

Built with a 1/4" bore and set for CW rotation (clockwise)

Does this motor require a specific capacitor for installation

Johnson Controls D-4073-3 Damper Actuator R-410A checking this flame rod forThe Johnson Controls D 4073 3 is a robust pneumatic piston damper actuator designed for the precise positioning of dampers in VAV boxes, terminal units, and unit ventilators. Built with a 5 10 PSI spring range and a full 3 inch stroke, this multipurpose device provides reliable proportional or two position control. It features a glass reinforced polymer housing and a 2 way swivel connection to ensure non binding movement during operation. The D 4073 3