Technicians should inspect for carbon buildup

or 1-2 PSI

Enhanced Torque Capacity: Sintered carbon steel construction provides superior strength compared to standard cast iron alternatives

this unit supports dual power configurations—compatible with both C-wire hardwiring and battery power—ensuring the 2-square-inch blue backlit display remains visible in low-light mechanical rooms

featuring a 7/16-inch compression connection (7/16" Comp)

Lochinvar & A.O. Smith 100165919 Ignitor 30067439-890 Technicians should inspect for carbonUpgrade your ignition system with the Lochinvar & A. O. Smith 100165919 Ignitor, a high performance Hot Surface Ignitor (HSI) designed for precision and durability in demanding heating applications. This authentic OEM component is a direct replacement for the Lochinvar PLT3000 and the older PLT2000 models, ensuring seamless mechanical and electrical compatibility. Built to withstand extreme thermal cycling, this Silicon Carbide ignitor features a