if the motor windings pass a resistance check (typically >100k ohms to ground)

ensuring reliable condenser water regulation without constant manual adjustment

Durable Construction: Made from high-grade materials to withstand extreme temperatures and mechanical wear

facilitating the setup of three discrete indoor fan speeds or recovery from system crashes

Trane SEN1519 Sensor 319825-402 if the motor windings passIf you are troubleshooting a 3 speed fan assembly in a Trane air handling unit or rooftop package, the Trane SEN1519 Sensor is a critical feedback component for maintaining precise airflow control. This OEM Trane replacement part, also identified under the superseded number SEN01519, is engineered to provide three distinct speed feedback signals directly to the HVAC control board. By monitoring the rotational or airflow conditions of the blower motor,