The compressor is the "heart" of any air conditioning system, located within the outdoor unit, where it pumps refrigerant through the lines. It is responsible for pressurizing the refrigerant gas so that it can release heat to the outside air effectively. Modern heat pump condensers use inverter-driven compressors to maximize energy savings and reduce mechanical wear. If a compressor fails in an older unit, it is often more cost-effective to explore our great deals and more for a complete system replacement. We stock replacement parts for various models, but a new high-efficiency compressor is usually found in our latest multi-zone outdoor units.