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

Dual-Stage Control: Manages 2-stage heating operations for improved temperature precision and efficiency

Loud operation often indicates a bent F125 fan blade or an loose set screw

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

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

Lochinvar & A.O. Smith 100167772 Control Module 320788-703 OEM Reliability: Ensures that theThe 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