Williams P200200 Fan Switch Note that the 396222 is

Note that the 396222 is technically identical to the 396222/U and is strictly intended for single-stage applications

this unit handles primary voltages of 120V

OEM Compatibility: Includes specialized adapters to allow standard motor installation in older Janitrol units

such as clogged filters or failing blower motors

For veteran technicians servicing Nordyne

Williams P200200 Fan Switch Note that the 396222 isThis Williams P200200 Fan Switch is a critical OEM replacement fan control designed for precise thermal management in Williams Forsaire and Magnum series furnaces. Engineered with a setpoint of 120F ON and a 15F differential, this SPST (Single Pole Single Throw) switch operates on a normally open circuit. It triggers fan activation once the plenum reaches the 120F threshold to ensure efficient heat exchange and prevent short cycling. As temperatures