What is a potential consequence of a clogged filter drier in a refrigeration system?

A clogged filter drier in a refrigeration system can lead to system icing up, which is a significant consequence. The filter drier's primary function is to remove moisture and contaminants from the refrigerant. When the filter drier becomes clogged, it restricts the flow of refrigerant through the system.

This restriction can cause a drop in the pressure and temperature of the refrigerant in parts of the system. When the refrigerant pressure drops, it can lead to a cooling effect that causes moisture to freeze, resulting in ice formation on the evaporator coil or other components. This icing can hinder the system's ability to transfer heat effectively, ultimately reducing the cooling capacity and efficiency of the refrigeration system.

Understanding this consequence highlights the importance of maintaining a clean and functioning filter drier to ensure optimal performance and avoid issues related to icing.