What is the effect of a dirty filter in a refrigeration system?

A dirty filter in a refrigeration system primarily reduces heat transfer efficiency. When the filter becomes clogged with dust, debris, and other particles, it limits the airflow through the system. This reduced airflow affects the ability of the evaporator coil to absorb heat effectively from the surrounding environment. As less heat is absorbed, the system struggles to achieve the desired cooling effect, leading to increased energy consumption and decreased overall performance. The compressor may then operate longer and harder to maintain temperature, which can further exacerbate issues with efficiency and wear on the system components. Thus, keeping the filter clean is essential for maintaining optimal heat exchange and energy efficiency in a refrigeration system.