updated part number for the 324435

Direct OEM Compatibility: Seamlessly replaces legacy 018F7681 units

Superior Conductivity: Features 18-gauge nickel chrome lead wires that are metallized in place for maximum mechanical holding strength and low-resistance electrical contact

Key operational functions including Min/Max memory and Data Hold simplify the logging of peak temperature performance during startup and commissioning cycles

this general-purpose limit control ensures the system operates within factory-specified thermal parameters

York S1-025-26390-001 Limit Switch updated part number for theThe York S1 025 26390 001 limit switch is a critical safety component designed for precise thermal regulation within residential gas furnaces. This HVAC high limit switch features an automatic reset mechanism and is calibrated to operate within a specific 210 260 F temperature range. When diagnosing a furnace overheating fix, technicians often identify this part as the primary failsafe that interrupts power to the gas valve when plenum temperatures