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Standard industry practice dictates replacing the HVAC filter drier whenever the system is opened for service
This kit is specifically for 8040 Series valves with AC coils
System Reliability: Replaces PRS2416K to resolve common pressure switch open error codes and ignition failure
outperforming generic aftermarket alternatives
Contractors often identify a failing 100110278 valve by an ignition fault or flame failure code on the control board
Lochinvar & A.O. Smith 100277816 Control 318518-761 Standard industry practice dictates replacingThe Lochinvar & A. O. Smith 100277816 Interface Control is an essential OEM replacement component designed for precision management of commercial and residential water heaters and boilers. As a veteran grade HVACR control board, this unit integrates advanced diagnostic capabilities with a clear LCD interface to provide real time data on system temperature, sequence of operation, and communication status. This high performance boiler interface control