In a system, if the pressure difference indicates non-condensable gases, what steps should be taken next?

In a refrigeration or air conditioning system, the presence of non-condensable gases, such as air, can significantly hinder the system's efficiency and performance. When a pressure difference indicates that non-condensable gases are present, purging the system is the most appropriate next step.

Purging involves removing these unwanted gases, which can lead to increased pressure in the system, reduced heat transfer efficiency, and potential damage to system components. By eliminating the non-condensable gases, the refrigerant can more effectively absorb and release heat, restoring system performance.

Checking the refrigerant level is an important maintenance task, but it does not directly address the issue of non-condensable gases. Inspecting the compressor is also crucial, but if non-condensables are identified first, the priority should be to clear them from the system before making any adjustments or inspections. Adjusting temperature settings would not resolve the underlying issue of non-condensable gases, making purging the necessary action to ensure the system operates correctly.