York S1-025-47281-000 Sensor 323613-751 While it follows standard sizing

While it follows standard sizing

meaning it permanently opens the electrical circuit to the gas valve or ignition control if the internal heat exchanger temperature exceeds the calibrated 248-degree Fahrenheit trip point

secondary side transformers

though technicians should always verify the flow arrow on the specific housing before brazing

Its 1/4" OD design allows for straightforward installation

York S1-025-47281-000 Sensor 323613-751 While it follows standard sizingEnsuring reliable defrost cycles in heat pump applications requires high precision feedback from the evaporator coil. The York S1 025 47281 000 Temp Defrost Thermistor Sensor is a critical OEM replacement part designed for York, Coleman, and Luxaire systems. This 10k ohm thermistor provides real time resistance input to the control board, allowing the system to initiate and terminate defrost modes based on actual coil temperatures rather than fixed