if it remains open at ambient temperature after a reset attempt

specifically where a 1

and all necessary elastomers including the body O-ring and operator O-ring

The York S1-025-32607-000 is a heavy-duty furnace high limit switch engineered for precise thermal monitoring within the heat exchanger canopy

York S1-026-35433-000 Compensator Tank Els PW 17895 if it remains open atThe York S1 026 35433 000 Compensator Tank is a precise OEM replacement part designed for field technicians servicing York HVAC systems, including chillers and industrial boilers. This expansion tank is engineered to manage thermal expansion within closed loop hydronic circuits, ensuring consistent system pressure regulation. Built with corrosion resistant materials, it prevents pressure spikes that cause premature fatigue on critical components like