a humming compressor that fails to start

Visible moisture around the top of the valve bonnet or resistance during stem travel often indicates that the valve stem seal has degraded and requires a new packing maintenance kit

replacing it with the 100208621 will restore the circuit

verify your static pressure and temperature rise before swapping this 240F Limit Switch for a seamless

Environmentally Sealed: Achieves an IP65 rating to prevent short circuits caused by condensation or external fluid leaks

York S1-025-26366-004 Limit Control Els PW 17895 a humming compressor that failsThe York S1 025 26366 004 Limit Control is a critical L195 65F OEM replacement part designed for high precision thermal monitoring in HVAC air handlers and furnaces. Featuring a fixed open temperature of 195F and a reset temperature of 65F, this fan and limit control switch serves as a vital fail safe against system overheating. Technicians rely on the S1 025 26366 004 for its specific fan limit switch settings, which ensure the blower cycles