Lochinvar & A.O. Smith 100170487 Upper Sensor 340155-7026 by offering continuous flame sensing

by offering continuous flame sensing and pressure switch monitoring to prevent unsafe firing conditions

Every draft inducer assembly includes a high-temperature replacement gasket to eliminate combustion leaks and ensure a gas-tight seal at the mounting flange

Built on a modular platform

OEM Compatibility: Authentic Reznor 82396 ensures seamless integration with factory controls and wiring harnesses

Lochinvar & A.O. Smith 100170487 Upper Sensor 340155-7026 by offering continuous flame sensingThe Lochinvar & A. O. Smith 100170487 Upper Sensor (formerly TST1187) is a critical thermistor based component engineered for high precision temperature monitoring in residential and commercial water heaters. As a direct immersion NTC temperature sensor, it provides real time resistance feedback to the control board, ensuring the appliance maintains optimal setpoints while preventing dangerous high limit conditions. This OEM water heater sensor is