OEM Lennox Copeland Scroll Compressor — 11C40

The genuine OEM Lennox 11C40 Copeland Scroll compressor powers the refrigeration cycle in your Lennox condensing unit or heat pump, raising refrigerant pressure so the system can move heat efficiently. The scroll design's orbiting and fixed spirals deliver continuous compression with fewer moving parts, translating to quieter, more reliable, and more energy-efficient performance. Built to Lennox factory standards, the 11C40 is a direct-fit replacement matched to the original unit's capacity and electrical requirements.

Common failure symptoms include the outdoor unit humming without starting, a breaker that trips on the cooling call, warm or weak airflow at the registers, loud mechanical noise, and thermal-overload trips that shut the compressor down. Oil pooling under the unit or a burnt electrical smell usually indicates the compressor has failed internally.

Why OEM matters: Lennox equipment is factory-matched to a specific compressor for proper charge, metering, and control behavior. Selecting the OEM 11C40 protects your system's rated efficiency and warranty and prevents the compatibility issues that plague generic substitutes. Refrigerant recovery and installation must be handled by a licensed HVAC professional.