ensure the blade is seated at the correct depth on the shaft

including various Discus models requiring capacity modulation

including the flame sensor and blocked drain switch

directly improving system efficiency and pressure

Williams P623677 Motor 321142-301 ensure the blade is seatedThe Williams P623677 Motor is a precision engineered OEM replacement blower motor designed specifically for Williams Comfort Products heating systems. This heavy duty 1 8 HP motor operates on standard 115V single phase power, delivering a consistent 1550 RPM output across its 4 speed furnace motor configuration. Designed for high static pressure applications, this PSC motor ensures optimal airflow through the heat exchanger, maximizing heat transfer