When should a technician perform a leak check on an AC system?

A technician should perform a leak check on an AC system at regular maintenance intervals and after repairs to ensure the system is operating efficiently and safely. Regular maintenance helps identify potential leaks before they become significant issues, which can lead to a loss of refrigerant, decreased efficiency, and harm to the environment. Performing a leak check after repairs is also crucial because it verifies that the repairs have been effective and that no further leaks exist, preventing refrigerant loss and maintaining system performance.

Regular checks contribute to the overall health of the AC system and help comply with regulations regarding refrigerant management, making this practice essential for technicians. While checks may be necessary under other circumstances, such as installing units or when a system is not cooling, the standard practice aligns with performing leak checks at established maintenance and repair intervals for optimal system reliability.