the thermocouple likely failed to produce the required millivolt signal to the gas valve

designed to break the electrical circuit when the plenum temperature reaches its 260°F opening setpoint

Can I use this as a universal replacement

What is the difference between an automatic limit and a manual reset limit

York S1-063-90037-000 Housing Plate the thermocouple likely failed toThe York S1 063 90037 000 Vent Housing Plate is a critical OEM replacement part designed for precision airflow management in York HVAC systems, including packaged units, RTUs, and central air conditioners. For a technician in the field, this plate is the foundation for securing the venter motor and blower assembly, ensuring that combustion byproducts are safely and efficiently directed through the flue. A compromised or warped plate leads to static