Lochinvar & A.O. Smith 100187881 Ignitor Assembly 326058-757 Manual Override: Includes a "set

Manual Override: Includes a "set and hold" manual mode

By increasing the header pressure from 15 PSIG to 20 PSIG

and safety shut-off protocols

Bypassing a safety limit switch is strictly against safety protocols

Lochinvar & A.O. Smith 100187881 Ignitor Assembly 326058-757 Manual Override: Includes a "setThe Lochinvar & A. O. Smith 100187881 Ignitor Assembly is a critical OEM replacement part engineered for high efficiency commercial gas water heaters, specifically the BTH, SUF, and HCG series. As a veteran grade spark ignitor assembly, this component ensures precise ignition timing in 300, 400, and 500 MBH models, as well as 200 201 series units. When troubleshooting water heater ignition failure, the 100187881 is the primary solution for restoring