OEM Lennox Compressor — 11C29

The genuine OEM Lennox 11C29 compressor is the heart of your air conditioning or heat pump system. It compresses low-pressure refrigerant vapor into a high-pressure, high-temperature gas and circulates it through the condenser and evaporator coils, driving the entire refrigeration cycle that removes heat from your home. This unit is matched to the displacement, voltage, and refrigerant specifications your Lennox system was designed for.

Common signs of a failing compressor include a system that runs but no longer cools, hard-starting or repeated tripping of the breaker, loud clattering or grinding noises, warm air at the supply registers, and the outdoor unit that hums but will not start. Electrical failures such as a grounded or open winding, or mechanical seizure, all point to compressor replacement.

Installing the OEM 11C29 is critical because compressor replacement is one of the most labor-intensive HVAC repairs, and a mismatched aftermarket unit can cause improper oil charge, poor efficiency, and premature failure. The factory compressor arrives with the correct internal oil charge and terminal configuration, ensuring proper capacity, warranty compliance, and long service life for your Lennox equipment.