What symptom indicates a noisy compressor or system due to a dry or scored seal?

A noisy compressor or system is often a sign of mechanical issues, particularly related to the compressor seal. When a seal is dry or scored, it can lead to insufficient lubrication and increased friction between moving parts. This condition is likely to produce a squeaking or squeaky sound as the components grind against each other, indicating that the seal is not functioning properly.

Lubrication is critical for the smooth operation of compressor seals, and a lack of it can cause wear and tear, leading to noise. In this scenario, the symptom of a squeaky compressor seal serves as an important diagnostic indicator, prompting maintenance or inspection to prevent further damage.

While other symptoms such as high water temperature at the outlet, temperature differences in the liquid line, and oil leaks are relevant to overall system performance, they are not specifically indicative of issues related to a dry or scored seal, making them less precise for diagnosing a noisy compressor.