Some of the simpler models like this one did actually allow the defrost water to run thru the FF section to the floor under the crispers, where there was a drain hole. Yours apparently does not do this, as the diagram on a similar units, such as the model that AJ pointed out. There appears to be a pan over the compressor which is supposed to catch the drain water. Sometimes it pays to go backwards and start at the far end of the drain tube and blow it out. Use compressed air and blast out the line. You may have to go into the freezer and remove the cover on the evaporator so you can inspect the drain there as well. If the hole is frozen over, use very hot water or a heat gun to melt it away from the drain hole so you can clear the line.
Regarding the Energy switch, turn this off. This turns on a small heater strip in the divider mullion between the freezer and fresh food doors so it won't sweat. Having the switch energized turns off this heater, and while this may save 3 cents a month in energy, also causes moisture to form between the doors.