Complete Service Kit: Includes the 383-500-045 ignitor

Engineered for high-temperature resilience in saturated steam services

it provides efficient operation and simplified wiring for field replacements

The high-pressure manual reset act as a lock-out safety

Lochinvar & A.O. Smith 100167773 Control Board 319825-402 Complete Service Kit: Includes theThe Lochinvar & A. O. Smith 100167773 Control Board is a critical OEM replacement part designed for high efficiency commercial water heaters and gas fired boilers. As an integrated HVAC control board, this component functions as the primary logic center, managing the ignition sequence, temperature regulation, and safety protocols to maintain peak thermal efficiency. Engineered for precision, it features advanced diagnostic capabilities that allow