Lennox 71M28 Control Board R-410A ensuring full compatibility with systems

ensuring full compatibility with systems specified for either part number

The sensor features a 1/4-inch male quick-connect terminal for rapid field installation and is rated for extreme thermal environments to prevent premature ceramic cracking or signal loss

as it utilizes standard furnace pressure switch mounting configurations and maintains original factory electrical specifications

Precision Timing: Optimized for standard 120V ignition modules

Lennox 71M28 Control Board R-410A ensuring full compatibility with systemsThe Lennox 71M28 Control Board is a genuine OEM replacement kit (MCC1 1) designed for critical system management in Lennox, Armstrong, and AirEase packaged units. Also identified by part number 71M2801 and older designations like LB 106199A or 56M99, this integrated furnace control directs essential operations including ignition sequence, blower motor timing, and continuous safety circuit monitoring. Engineered for 120V AC applications, it is a direct