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The genuine OEM Lennox 16P78 compressor is the core component of your Lennox condensing unit, responsible for compressing and circulating refrigerant to power the entire cooling cycle. This factory-authorized part is built to the exact mechanical and electrical specifications of your Lennox equipment, ensuring correct displacement, proper motor windings, and seamless integration with your unit's controls.
Common failure symptoms: A failing compressor typically causes warm air at the registers, loud humming, grinding, or clicking sounds, hard-starting or short-cycling, frequent breaker trips, and a unit that runs continuously without cooling. A shorted or open winding will stop the compressor from starting altogether.
Why OEM matters: Compressors are precision-matched to a system's refrigerant charge, oil, and voltage. Installing the OEM Lennox 16P78 protects your equipment warranty and guarantees rated efficiency and reliable operation. Aftermarket substitutes risk capacity mismatches, premature failures, and voided coverage — the factory part is the safest, longest-lasting choice.