Which symptom might indicate that a refrigeration system is overcharged?

The symptom indicating that a refrigeration system is overcharged is ice buildup on the evaporator. When a system is overcharged, it means that there is too much refrigerant in the system. This excess refrigerant can lead to flooding of the evaporator coil, which causes the humidity in the air to freeze instead of being appropriately evaporated. As a result, ice forms on the evaporator, leading to compromised heat exchange, restricted airflow, and, ultimately, inefficient cooling.

This situation is particularly evident when the evaporator is unable to absorb heat effectively due to the excessive refrigerant preventing proper vaporization. It can create an icing issue that constrains the system's overall performance, reinforcing the signs of overcharging. Proper maintenance and monitoring of refrigerant levels are crucial to ensure the efficient operation of the refrigeration system and to avoid such hazardous conditions.