Developed for precision airflow management

a lack of continuity at room temperature indicates a failed component that requires replacement

If your furnace blower runs constantly but the burners won't ignite—or if the system is short cycling—you should test for continuity across the terminals

This double pole double throw relay features a 24-volt AC coil and is rated for up to 20 amps

The 100166430 is the updated part number for the PUM3010

Trane SEN0999 Temp Sensor 323080-701 Developed for precision airflow managementThe Trane SEN0999 is a high precision mixed air temperature sensor engineered for commercial and industrial air handling units. Featuring a 15 foot capillary tube, this sensor is designed to provide comprehensive average temperature readings across the duct cross section, preventing localized stratification from causing inaccurate system cycling. This OEM Trane replacement is critical for economizer control and maintaining discharge air setpoints