This is the classic symptom of a failed flame sensor

and VCP-34 series pneumatic actuators

As a direct replacement for 3TX7144-1E4

"H-721LC" is a common alternate SKU format for the Veris Industries H721LC solid-core transducer

ensuring a clean mating surface is paramount

Rheem-Ruud 62-22727-01 Pilot Orifice This is the classic symptomThe Rheem Ruud 62 22727 01 Pilot Orifice is a precision engineered OEM furnace replacement part designed specifically for Liquid Propane (LP) ignition systems. Featuring a critical 0. 010 inch orifice diameter, this component regulates fuel velocity to ensure a stable pilot flame and reliable ignition across select Rheem, Ruud, and Richmond heating units. As a veteran grade LP gas pilot orifice, it is essential for technicians performing seasonal