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The genuine OEM Lennox R101907-08 is a Bristol H82J303ABCA reciprocating compressor rated at 30,800 BTUH, 208/230V, single-phase, for R-410A systems. This piston-driven compressor is the pump at the center of your Lennox condensing unit, compressing refrigerant vapor to circulate heat through the system. Bristol reciprocating compressors are known for rugged reliability and strong performance in demanding Lennox applications.
Common failure symptoms: no cooling output, the compressor humming without starting, tripped breakers, repeated shutdowns on the internal overload, knocking or slapping sounds from worn pistons or valves, low capacity from leaking valve plates, or oil around the terminal cover. A locked rotor or a shorted/open winding on a meter typically confirms a failed R101907-08.
Why OEM matters: Lennox matches this Bristol compressor to the system's displacement, POE oil charge, and electrical requirements. Choosing the OEM R101907-08 maintains rated capacity, protects your warranty, and prevents the reliability issues caused by mismatched substitutes. Recover the refrigerant, install a fresh filter drier, pull a deep vacuum, and recharge to spec during replacement.