Performed ac tune up, check electrical low and high ok flushed drain test pump, replace filter, check split ok, check outdoor unit, unit is running very hard, ac unit not rejecting all the affectively, creating high pressures, which means compressor and fan motor working harder, coil is clean, check capacitor and contactor ok, unit is not performing the way it should be doing, it is cooling, but is working at extremely conditions would recommend replacing system