Arrived on site and performed combo tune up on system. Tested heat and checked for safety issues. All checked out filter is restricted and should be replaced. Advised client to get them online. Cleaned condenser coil and whiled down system with uv protective coating. Cleaned off electrical terminals. Refrigerant charge and temp split are good. System is operational upon departure. Found newly installed Samsung mini split low on charge. Inspection found leak is most likely near head unit. Lineset cover is not installed the best. Placement of unit could be more centered for better efficiency. Client is having installing company come out to warranty work.