What is a common indicator of a clogged filter in a refrigeration system?

A common indicator of a clogged filter in a refrigeration system is increased energy consumption. When a filter becomes clogged, it restricts the airflow through the system. As a result, the compressor has to work harder to maintain the desired cooling effect, leading to higher energy usage. This increased workload can manifest as higher electricity bills and is a key indicator that maintenance is needed.

Additionally, clogged filters can also lead to other complications within the system, such as reduced efficiency and potential overheating of components. Monitoring energy consumption is therefore a critical method for diagnosing issues like filter clogging in refrigeration systems.