Lennox 68M64 Control Board Refrigerant Engineered with a 680 PSI

Engineered with a 680 PSI maximum working pressure

It supports remote flame sensing and includes dedicated flame current test pins

This steam trap repair kit allows for rapid in-line maintenance

the "C" suffix typically denotes bulk or commercial packaging but does not change the form

Lennox 68M64 Control Board Refrigerant Engineered with a 680 PSIThe Lennox 68M64 Control Board is a specialized integrated furnace control designed for precise regulation of residential and commercial HVAC systems. This OEM replacement part is technically identical to the Lennox 68M6401, providing a direct drop in solution for contractors servicing Lennox furnaces and heat pump systems. Engineered to handle 24V AC input, this printed circuit board (PCB) manages critical blower motor timing, defrost cycles, and