York S1-7990-6501 Booster Assembly Els PW 17895 Its multi-mount design includes a

Its multi-mount design includes a 4-1/4 inch x 4-1/4 inch mounting plate and a 1/2 inch conduit hub for simple electrical knockout installation

ensuring consistent resistance readings and thermal stability

This model features external pressure equalization via a 1/4-inch flare connection

allowing the furnace to attempt a new ignition cycle

Operating with an automatic reset mechanism

York S1-7990-6501 Booster Assembly Els PW 17895 Its multi-mount design includes aThe York S1 7990 6501 Booster Assembly is a critical OEM replacement part designed for high efficiency gas furnaces within the York, Coleman, and Luxaire families. This BDF Vent Booster Assembly is engineered to facilitate proper flue gas evacuation, ensuring the pressure switch closes to allow the ignition sequence to proceed. As a centrifugal blower, it manages the venting of combustion byproducts safely out of the heat exchanger. When diagnosing a