How can I identify when this electrode needs replacement

After installing the LP spring and orifices

and horizontal configurations

This specialized furnace flame sensor replacement is designed to detect the millivolt signal generated by the burner's flame

Exact OEM Specifications: Matches Williams furnace replacement parts standards for immediate drop-in installation without manifold modifications

Belimo FSNF120 Actuator Freon How can I identify whenThe Belimo FSNF120 is a high torque fire and smoke damper actuator designed for life safety applications in HVAC systems. Operating on a 120 VAC power supply, this spring return actuator delivers 70 in lb of torque, ensuring reliable fail safe operation during power loss or fire alarms. Built with a rugged steel housing, it is engineered to meet UL555 and UL555S standards, capable of strictly managing smoke leakage in commercial ductwork. The unit