Lennox 33M56 Wire Harness 324846-701 The unit features a selectable

The unit features a selectable jumper or switch configuration on the circuit board (typically labeled W904) to toggle between temperature scales during the initial setup

ensuring high mechanical and electrical life cycles

and multi-stage heating or cooling systems

including multi-stage RTUs and heat pumps with auxiliary heat configurations

reducing it to safe levels (often under 1V)

Lennox 33M56 Wire Harness 324846-701 The unit features a selectableThe Lennox 33M56 Wire Harness (OEM Part # 20438201) is a critical 33 inch HVAC electrical connector designed for precise signal and power distribution within residential heating units. Engineered to meet exacting factory specifications, this genuine Lennox harness serves as the primary link between the integrated furnace control board and peripheral components such as pressure switches, ignition modules, and blower motors. Utilizing high grade, heat