Lennox 52M42 Limit Switch 323055-751 or "red dust" iron powder

or "red dust" iron powder emissions indicative of fit failure

ensuring the mechanical room remains safe

Contractors value the B1172601 for its direct-fit compatibility with numerous Goodman furnace models

providing superior regulation compared to unbalanced alternatives

Optimized Efficiency: Demand-based logic prevents "ghost" defrost cycles

Lennox 52M42 Limit Switch 323055-751 or "red dust" iron powderThe Lennox 52M42 Limit Switch is a critical safety component designed for precise thermal regulation within Lennox residential furnaces. As a genuine Lennox OEM replacement part, this 180 40F auto limit switch is engineered to monitor heat exchanger temperatures, effectively preventing hazardous overheating and potential equipment damage. This furnace high limit switch features a fixed set point of 180F for the opening temperature and an automatic