Refrigerator leak

[jwe]

GE refrigerator, model # GSS25JFMB, s/n # GA234368

There is a leak somewhere in or around the ice maker. Water also leaks down the line inside the door to the outer dispenser. I have replace the valave at the botto in the back of the fridge twice because of leaks...now its on the inside!
Is there valve that that closes when the ice trays are full that is faulty? Could it be a frozen water line? How do you tell?

[DIY Guy]

First, check the ice tray to see if it is overfilling.

Next stand and watch the fill tube which hangs over the ice mold. Watch for a drip.

While inspecting the fill tube, is it iced up?

Is it possibly a crack in the water line leading to the door service allowing water to slowly drip as well as run down the line?