making it an essential OEM HVAC replacement part for technicians focused on system uptime and thermal protection

this unit offers a reliable solution for restoring factory-spec performance

the 504 features a level-actuated pilot valve held by a magnetic action

including LED

OEM Reliability: Ensures that the low water cut-off or water feeder functions according to factory performance specifications

Lochinvar & A.O. Smith 100167772 Control Module 320788-703 making it an essential OEMThe Lochinvar & A. O. Smith 100167772 Control Module is a critical OEM replacement part engineered for high efficiency commercial water heaters and hydronic boiler systems. As a primary digital controller, this module manages the ignition sequence, gas valve modulation, and flame supervision to ensure peak thermal efficiency and operational safety. Designed to interface with the SMART TOUCH and CONXUS platforms, the 100167772 provides consistent