Can I use the 304400 on an FS7-4 series switch

the internal contacts may be failing

providing superior protection for internal components in environments where dust or moisture may be present

Optimized Pressure Control: Specifically engineered to reduce negative pressure inside the appliance

Does this assembly include the bird screen

Lochinvar & A.O. Smith 100167768 Board 340793-762 Can I use the 304400As a seasoned technician, you know that a failing control system can take down an entire commercial or residential heating line. The Lochinvar & A. O. Smith 100167768 Integrated Circuit Board is the critical OEM replacement designed to restore high precision management to your hydronic and domestic water heating systems. This board functions as the central command for temp control circuitry, managing everything from ignition control geometry to