OEM Lennox Copeland Scroll Compressor — 11C36

The genuine OEM Lennox 11C36 is a Copeland scroll compressor engineered as the heart of your Lennox air conditioning or heat pump system. It compresses and circulates refrigerant through the condenser and evaporator coils, driving the entire cooling cycle. Because it is a factory-matched Copeland unit, the 11C36 delivers the exact capacity, efficiency, and quiet, low-vibration operation your Lennox equipment was designed around.

Common failure symptoms: a compressor nearing the end of its life often shows a system that runs but no longer cools, a hard-starting or humming unit that trips the breaker, loud grinding or knocking noises, or a compressor that repeatedly overheats and shuts down on its internal overload. Electrical failures — an open or shorted winding — will prevent the compressor from starting at all.

Why OEM matters: Lennox systems are charged and balanced for a specific compressor displacement and electrical profile. Installing the genuine 11C36 ensures correct refrigerant flow, protects your warranty, and avoids the premature failures and efficiency losses common with aftermarket substitutes. This is a direct factory replacement built to restore rated performance and long service life.