By replacing worn or pitted contacts with this HVAC replacement part

If no flame is detected

Precision Voltage: Optimized for an open circuit mV range of 20 to 28 mV to minimize voltage drop issues across the lead

Automatic Reset Functionality: Transitions between 165°F (Open) and 125°F (Closed) states without manual intervention

Williams 2901 Fan 30067439-890 By replacing worn or pittedFor service technicians maintaining regional heating systems, the Williams 2901 Fan serves as the primary blower assembly for Williams Monterey Top Vent furnaces. This technical grade component features a 1 125HP motor engineered for high static pressure environments, operating at a nominal 120V and delivering a consistent 3000RPM at peak performance. This 2 speed replacement motor provides precise air delivery control, rated for approximately 100 CFM