Direct Cross-Compatibility: Engineered as the updated functional equivalent for the Lennox 18L89 pressure switch

this Auburn manufacturing electrode provides the dependable performance required to maintain peak combustion efficiency and operational safety in high-output energy systems

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or an audible humming from the compressor indicating a failure to initiate the start winding

Optimized Lead Length: Features 8

Lennox 17F03 Drain Pan R-407C Direct Cross-Compatibility: Engineered as theAs an experienced HVAC technician, you know that managing condensate in horizontal air handler configurations is critical to preventing structural water damage. The Lennox 17F03 Horizontal Drain Pan is a purpose built condensate management solution designed specifically for 3 ton to 4 ton Lennox units. This HVAC drain pan replacement is constructed from heavy gauge galvanized steel, offering superior corrosion resistance compared to plastic