Perform CMA full service on a gas pack, 2 split heat pump systems and 2 mini splits. Tech found the Fujitsu system (low refrigerant, leak in the system for over a year) printer room. completely down and has not been operational for almost a year. Mitsubishi mini split is operating properly, carrier split system is operating properly, the trane split system has been informed that is short cycles and shuts off on low pressure, findings were provided during the last CMA inspection and that a level 3 leak search and adding nitrogen to pressurize the system is recommended due to pin point the leak. Trane system supples part of the assembly room. A more often Filter change is recommended in the assembly room due to finding them extremely clogged. Findings and estimates will be provided. Tech recommends replacing the Fujitsu mini split. Customer in charge was not on site prior to tech departing.