Smith water heater not igniting despite a good pilot

What is the maximum operating pressure for the FT-15

Reliable 24V Actuation: Standard low-voltage operation compatible with most HVAC control boards and 24V thermostats

While it fits many high-efficiency models

GC Valves S211YH24V5DG4 Solenoid Valve R-407A Smith water heater not ignitingThe GC Valves S211YH24V5DG4 Solenoid Valve is a 1 2" NPT normally closed solenoid valve engineered for high demand HVACR and industrial fluid control. This unit features a Viton seat, providing superior chemical compatibility and thermal resistance compared to standard NBR components. Operating on a 24V AC DC platform, it is designed for seamless integration into existing control circuits. The S211YH24V5DG4 serves as the direct technical cross