Inspect the gasket during every annual boiler service

Substituting a different rating can prevent the furnace from firing or allow it to operate under unsafe venting conditions

Key Benefits High-Efficiency Filtration: The 25-micron filter element protects precision calibrated orifices from dust

though a clean sensor should ideally produce 2

and VR4305 series

York S1-025-38584-000 Defrost Sensor Inspect the gasket during everyThe York S1 025 38584 000 Defrost Sensor is a critical thermistor component designed for precise ambient temperature sensing in York, Luxaire, and Coleman heat pump systems. This HVAC replacement sensor monitors outdoor coil conditions to provide accurate resistance data to the integrated defrost control board, ensuring the system initiates defrost cycles only when necessary. Constructed with a high reliability thermistor bead, the S1 025 38584 000