Lennox 10M79 Limit Switch 322838-753 this main harness eliminates the

this main harness eliminates the high-resistance issues often found in aftermarket "universal" kits

What is the purpose of the 'Cover Missing' signal

This is a complete assembly including the molded 4-pin plug and pre-terminated insulated wire leads for direct installation

When you are upgrading an older Nordyne furnace for air conditioning or heat pump compatibility

By integrating full-time flame monitoring and specialized safety timings

Lennox 10M79 Limit Switch 322838-753 this main harness eliminates theThe Lennox 10M79 Limit Switch is a critical safety component engineered for precision thermal monitoring in HVAC systems and residential furnaces. This OEM Lennox part, also identified by manufacturer number 10M7901, features an L140 40F configuration. It is calibrated to open the electrical circuit when internal temperatures reach a 140F limit, effectively preventing heat exchanger damage and ensuring safe appliance operation. The switch