Nordyne 904574 Limit Switch A standard 10mm wrench or

A standard 10mm wrench or socket is required to properly torque the clamp nuts to the OEM specification

Designed for precise voltage output

the P291-3554RS features a non-PCB

always verify the boiler parts list for the specific series you are servicing

or compression set

Nordyne 904574 Limit Switch A standard 10mm wrench orThe Nordyne 904574 Limit Switch is a critical safety component designed for high limit temperature monitoring within gas fired furnaces. This 145F CO auto limit switch serves as a primary thermal watchdog, specifically engineered to open the electrical circuit at a fixed set point of 145 degrees Fahrenheit. By integrating a time delay relay, the 904574 ensures that the system responds accurately to abnormal heat rise and potential carbon monoxide