Which condition can occur if the compressor operates without sufficient lubrication?

When a compressor operates without sufficient lubrication, it can lead to serious internal friction and wear on its moving parts. Lubrication is essential in reducing friction and ensuring that all components of the compressor can move smoothly. Insufficient lubrication results in metal-to-metal contact, which can cause the compressor's moving parts to overheat. If the friction continues without adequate lubrication, the compressor may eventually seize, which means it can no longer rotate or function properly. This condition can lead to complete failure of the compressor, requiring costly repairs or replacement.

In contrast, efficient operation is reliant on proper lubrication; therefore, the scenario where the compressor runs more efficiently does not apply. While some might think that minor lubrication issues might have no discernible effect on performance, the reality is that lubrication is critical for maintaining the health of the compressor. Noise produced by the compressor can also be symptomatic of a lubrication issue, but the most severe consequence is the risk of the compressor seizing up due to lack of adequate lubrication.