Performed diagnostic on one year old upstairs unit. Upon arrival customer was not on site met with restoration company stated ceiling was leaking due to hvac unit upon going in attic noticed water coming from drain line noticed drain line was not glued and also had black duct tape on it also noticed drain line was not properly vented. Noticed Custer aqua gurad float switch, recommend TE flood protection such as wet switch, Inspected filter and replaced filter checked evap coil checked blower wheel inspected outdoor unit, checked capacitor. Called and spoke with home owner about issues, recommended home care as well as indoor air quality, customer did want to move forward with drain line repair as well as home care, customer will look over indoor air quality once he return home, redid drain line properly, add a union as well as a clean out and vent on p trap, poured water to make sure was draining properly, checked pressures and temp split, unit working properly at time