If you see bubbles forming, refrigerant may be escaping. Improve ac performance by tracing freon leaks using the bubble test, refrigerant detectors or the pressure resistance test. The technician will perform a thorough inspection of the system, check the refrigerant levels, and use specialized tools to confirm the presence of a leak
How To Check If Ac Has Freon at Samuel Stapleton blog
If a leak is found, they can repair the damaged components and recharge the refrigerant according to the manufacturer’s specifications.
