Conductive grease is generally not required

Key Benefits for Field Technicians Universal Compatibility: Serves as a direct cross-reference for the Norton 271W and various OEM hot surface igniter replacements

High-altitude applications generally require a different set point (e

it is the correct technical replacement

For maximum accuracy and to maintain calibrated set points

Reznor 123975 Fan Control 30067439-890 Conductive grease is generally notThe Reznor 123975 Fan Control is a critical HVAC high limit switch designed specifically for Reznor unit heater maintenance and repair. This F150 55F fan control operates with a fixed temperature setting, featuring a 150 degree cut in and a 55 degree differential to ensure precise blower cycling and heat exchanger protection. Equipped with a pre installed mounting bracket, this OEM replacement part simplifies the installation process for technicians