OEM Lennox Copeland Scroll Compressor — 11C28

The genuine OEM Lennox 11C28 is a Copeland scroll compressor that powers the refrigeration cycle in your Lennox outdoor unit. By compressing refrigerant vapor with smooth, orbiting scroll motion, it rejects heat efficiently and quietly — the core function that keeps your home cool. This unit is manufactured to Lennox specifications for a precise match in capacity, voltage, and refrigerant compatibility.

Common failure symptoms: Watch for a system that runs continuously without cooling, a compressor that hums or clicks but won't start, tripped breakers, excessive vibration or knocking sounds, and warm air at the supply registers. These often point to seized bearings, failed windings, or a burned-out motor requiring replacement.

Why OEM matters: As the most vital and costly part of your air conditioner, the compressor must be matched exactly to your system. The OEM Lennox 11C28 guarantees proper displacement, oil type, and electrical fit — preserving rated efficiency and warranty protection that generic replacements cannot. Always pair a compressor swap with a new liquid-line filter drier to protect your investment.