Lennox 78F90 Motor R-410A this VG7000 Series bronze valve

this VG7000 Series bronze valve offers a normally open (push-down-to-close) fail-safe position

Common indicators include the burner failing to ignite despite a confirmed spark or hot surface igniter glow

this crankcase heater replacement serves as a direct upgrade for older 44-17402-44 and 44-101884-08 numbers

ensure oil levels are managed or the system is isolated to prevent refrigerant loss during the swap

Lennox 78F90 Motor R-410A this VG7000 Series bronze valveThe Lennox 78F90, also identified as the Lennox 78F9001, is a heavy duty Permanent Split Capacitor (PSC) blower motor engineered for reliable operation in furnace and air handler applications. As a 1 2 HP, 1075 RPM unit, this motor is a direct OEM replacement designed specifically for Lennox residential and commercial systems requiring a 208 230V, single phase power supply. Built on a 48 frame with a 5. 63 inch body diameter, the 78F90 features a 1 2