What characteristic signifies a well-performing compressor?

A well-performing compressor is indicated by stable oil pressure. This characteristic is crucial because oil pressure directly impacts the lubrication of the compressor components, which is essential for reducing friction and wear during operation. When oil pressure is stable, it signifies that the compressor is operating within its designed parameters, effectively ensuring smooth operation and reducing the risk of overheating or mechanical failure.

Stable oil pressure also helps maintain proper sealing within the compressor and supports overall system efficiency. Fluctuating oil pressure can lead to inadequate lubrication, which can ultimately result in increased wear, increased energy consumption, and potential mechanical breakdowns.

Other characteristics like high discharge pressure, low amperage draw, and constant temperature output can indicate certain aspects of performance but do not directly reflect the overall health and reliability of the compressor in the same fundamental way that stable oil pressure does.