If you measure 24V at the solenoid but get no downstream manifold pressure

including model CHGD42S41Q1

or O series valves

What is the primary cause of failure fixed by this kit

Lochinvar & A.O. Smith 100327147 Pilot Assembly 323055-751 If you measure 24V atAs an HVAC technician, you know that a reliable ignition sequence is the backbone of any liquid propane system. The Lochinvar & A. O. Smith 100327147 Pilot Assembly is a critical OEM component designed specifically for LP gas water heaters and boilers. This unit serves as the direct replacement for 100165861, ensuring a seamless fit and immediate restoration of the pilot flame circuit. Constructed for durability in high heat environments, it features