Lennox 71W43 Limit Switch 323055-751 reducing system shock and improving

reducing system shock and improving thermal efficiency

While designed for internal mounting within OptiView or Latitude panels

This auto-reset limit switch ensures the blower continues to dissipate residual heat

but always check the unit nameplate or conversion kit instructions to confirm the exact target

All unused outlets must be securely plugged using the socket plugs provided in the kit to prevent gas leaks and ensure system pressure integrity

Lennox 71W43 Limit Switch 323055-751 reducing system shock and improvingThe Lennox 71W43 Limit Switch is a critical safety component designed for precise thermal regulation within residential and commercial furnace assemblies. This OEM Lennox replacement part, also identified as the L140 30F limit control, is engineered to monitor heat exchanger temperatures and interrupt the electrical circuit if internal heat exceeds safe parameters. With a fixed 140F opening temperature and a 110F automatic reset, this switch ensures