Which condition indicates an oil failure in a control system?

Prepare for the Refrigeration and Air Conditioning Mechanics (313A) Test. Study with flashcards and multiple choice questions, hints and explanations included. Ace your exam!

The indication of an oil failure in a control system is most accurately represented by continuous compressor operation despite a malfunction. In properly functioning systems, compressors should cycle on and off based on load demands and operational efficiency. If there is an oil failure, it may affect the compressor's ability to lubricate properly, potentially leading to overheating or mechanical failure. However, in some cases, the compressor could continue to run without adequate lubrication, which can exacerbate the underlying problem.

When the compressor does not shut off despite a malfunction, it suggests that the control system is not responding or assessing the operational parameters correctly. This can indicate a failure in the oil sensing mechanisms or oil circulation, which is crucial for the compressor's function. Continued operation under these conditions can lead to serious damage or complete system failure.

Other choices do not directly relate to oil failures in a control context. High pressure readings may indicate a refrigerant issue or blockage rather than an oil-related problem. Low temperature output suggests an issue with the cooling efficiency rather than lubrication. High current draw might indicate an overload due to various reasons, including electrical issues or refrigerant flow problems, but it does not specifically point to an oil failure alone.

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