Lochinvar & A.O. Smith 100168668 Air Sensor 321894-708 a seized or failing LV-401

a seized or failing LV-401 venter motor is often the culprit

poor temperature control

If the sensor shows an open circuit or significant Ohm deviation based on actual ambient conditions

facilitating rapid HVAC switch replacement using standard female disconnects

Lochinvar & A.O. Smith 100168668 Air Sensor 321894-708 a seized or failing LV-401The Lochinvar & A. O. Smith 100168668 Air Sensor is a critical component for achieving precise outdoor reset control in high efficiency 100 Series and 110 Series heating systems. Designed for seamless integration with Smart System controls, this NTC thermistor allows the boiler to dynamically adjust its firing rate and water temperature set point based on real time ambient conditions. By providing accurate outdoor temperature sensing, it enables