What is a common symptom of a refrigerant leak in a refrigeration system?

A common symptom of a refrigerant leak in a refrigeration system is a decrease in cooling performance. When there is a leak, the system loses refrigerant, which is crucial for absorbing heat and dissipating it outside. As the refrigerant level drops, the system can't maintain the desired temperature and cooling efficiency, leading to noticeable performance issues.

Increased suction line temperature can also occur with a refrigerant leak. The refrigerant in the suction line may not be as cold as it should be, due to insufficient refrigerant to absorb heat, which results in higher temperatures within that line.

Higher compressor cycling frequency is another symptom, as the compressor may need to work harder to reach or maintain the setpoint temperature and will cycle on and off more frequently due to fluctuating pressure levels created by the lack of sufficient refrigerant.

Since all these symptoms—decreased cooling performance, increased suction line temperature, and higher compressor cycling frequency—are commonly associated with refrigerant leaks, the inclusion of "all of the above" accurately encapsulates the multiple manifestations of such a problem.