Lochinvar & A.O. Smith 100112746 Display Board L99H008 45 lb assembly features standardized

45 lb assembly features standardized bolt patterns for a direct fit

including the MA40-7041-501

double throw (SPDT) configuration

OEM Compatibility: Replaces JCI York 473-20937-001

Failure is typically due to a weak thermocouple not generating sufficient millivoltage or a buildup of carbon at the magnet contact point

Lochinvar & A.O. Smith 100112746 Display Board L99H008 45 lb assembly features standardizedAs a field tested technician, you know that a compromised user interface on a commercial water heater effectively sidelines the entire system. The Lochinvar & A. O. Smith 100112746 Display Board serves as the primary User Interface Module for high efficiency systems, including the Cyclone BTH 120 through BTH 250 series. This genuine OEM replacement part (also identified by MPN 9008460005) is engineered to restore full system diagnostics and parameter