Upon arrival found that the downstairs system had been leaking water onto the ceiling. Checked inside unit and found that the main drain line had been broken off the coil. Was able to re-pipe a new male fitting in and P-trap. Found that the filters were clogged, outdoor coils were clogged and a contactor burnt up on the downstairs. Homeowner approved replacement of drain section, cleaning coils and replacing contactor. System is now draining and cooling properly at this time.