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

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

This part is a direct factory replacement and is technically identical to the J38R06891-001 model

Multi-Speed Versatility: Features a 3-speed tap configuration

and KD Series

Lochinvar & A.O. Smith 100167772 Control Module 320788-703 Loud operation often indicates aThe 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