Lennox 12P55 Limit Switch 318423-701 Technicians should refer to the

Technicians should refer to the original relay's specifications

For the 038256200

With a 42 inch capillary length

The Spence Engineering P-T134-C1S1DA11 is a heavy-duty cast iron temperature pilot designed for precise thermal regulation in steam service applications

and shaft diameter compatibility

Lennox 12P55 Limit Switch 318423-701 Technicians should refer to theWhen you are dealing with a furnace that is short cycling or hitting the high limit threshold prematurely, the Lennox 12P55 Limit Switch (Model L190 30F) is the exact OEM replacement required to restore safe operation. This bimetallic disc limit switch is engineered to monitor heat exchanger temperatures, featuring a critical 190F cutout setpoint and a 30F differential for the reset. As a primary safety component in Lennox residential furnaces, it