Lennox 51M69 Thermostat 323613-751 the tray should be replaced

the tray should be replaced to restore efficiency

Always verify the voltage at the cooler's junction box before installation

this switch is factory-sealed and non-adjustable

Optimized for R-410A: Designed to withstand the higher operating pressures of modern refrigerants

Lennox 51M69 Thermostat 323613-751 the tray should be replacedThe Lennox 51M69 L94 20F thermostat is a specialized limit control switch designed for precision temperature management within Lennox HVAC systems. As a critical safety component, this bimetal disc thermostat monitors supply air temperatures, specifically engineered to open at 200F and close at 160F. This SPST (Single Pole Single Throw) normally closed switch ensures system integrity by interrupting the heating circuit if internal temperatures exceed