Tech diagnosed full system, tech noticed water buildup inside return plenum box. This due to dirt build up at evap coil and dirt buildup at primary drain pan. This causes restriction and blockage at pvc drain line. Also tech noticed refrigerant levels not at systems manufacturer specs. Tech did a quick leak search did not detect any leaks at indoor or outdoor unit. Tech also recommended replacement of filter 20x20x1. Please review estimates/ recommendations from technician, to respond to any estimates you can do so by email or calling in to reschedule appointments. Thanks for choosing TE Certified!!