OEM Lennox Scroll Compressor — 15Y49

The genuine OEM Lennox 15Y49 compressor is the core of your Lennox outdoor unit, pressurizing and circulating refrigerant to move heat from inside your home or building to the outside air. As the heart of the refrigeration cycle, it directly determines the system's cooling capacity and overall efficiency.

Signs that this compressor may be failing include a unit that hums but won't start, frequent breaker trips, loud knocking or metallic noises, insufficient or no cooling, and short cycling. Overheating, a burnt smell, or high locked-rotor amperage often indicate an electrical fault in the motor windings or internal mechanical wear.

Selecting the OEM 15Y49 ensures the exact tonnage, oil charge, and electrical characteristics Lennox specified for your equipment. Factory-matched replacement maintains rated performance and SEER efficiency, keeps your warranty intact, and provides a precise fit with the existing contactor, line set, and control circuitry — protecting the long-term reliability of your system.