Lennox 71W43 Limit Switch 323080-701 and S3 (or +

and S3 (or +

the 1014526 is the official superseding part number for the 1013866

managing the cycle between heating and defrost modes to prevent excessive ice accumulation on the outdoor coil

This centrifugal blower fan design is optimized for balanced rotation

The Illinois 0036848 is engineered for specific G Series footprints

Lennox 71W43 Limit Switch 323080-701 and S3 (or +The 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