this OEM part is engineered to detect abnormal high-temperature conditions—specifically flame rollout—and immediately break the electrical circuit to shut down the gas valve

Easy Field Installation: Mounts directly to the actuator spline using a standard #2 Phillips screwdriver for quick set-point locking

or if the measured capacitance drifts more than 5-10% from the nominal 35/5 MFD rating

Common Questions What is the maximum working pressure for this tee

ensuring correct terminal alignment and mounting depth

Lennox 27F74 Flame Rod Lead this OEM part is engineeredThe Lennox 27F74 Flame Rod Lead is a critical replacement component for maintaining reliable flame rectification in Lennox furnace ignition systems. This high temperature insulated wire, finished in white, provides the electrical path between the ignitor flame sensor assembly and the integrated furnace control board. Designed for precision, the 27F74 is technically identical to the Lennox 27F7401, ensuring 100% compatibility across residential and