Lennox 23G38 Limit Switch Its unique "HH" core technology

Its unique "HH" core technology is specifically formulated to remove wax from low-temperature systems

Ensure the pump cover is seated flush against the cooling dome and that the impeller is free of clerical obstructions

replacing the old seal with this precision-cut HVAC part restores factory-spec safety and performance

ensuring long-term operational stability and system safety

The kit is factory-configured for Natural Gas but includes a separate LP gas orifice for Propane conversion in the field

Lennox 23G38 Limit Switch Its unique "HH" core technologyAs a core safety component for critical heating applications, the Lennox 23G38 Limit Switch provides essential thermal protection by monitoring the internal temperature of the heat exchanger. This OEM Lennox part is a fixed temperature L180F 40F auto limit switch, engineered to open the electrical circuit at 180F and automatically reset when the temperature drops to 140F. This high limit safety control prevents equipment damage and potential fire