freezer door leak

Here’s the problem, the bottom freezer had ice build up in it, I removed the back panel and defrosted the ice, that went fine but my real problem is the freezer seems to leak from under the door where the water line comes into the freezer door. If I turn the water valve off the freezer does not leak, if I turn it on I get the same leak under the door can anyone help. Thanks

Is there an ice build up on the freezer floor?

Would it leak if the water valve is "on" but you would not use the water dispenser?

Inspect the water tube under the refrigerator all the way to the freezer door.

Here are the break down diagrams for the GE refrigerator http://www.appliancepartspros.com/partsearch/model.aspx?diagram_id=497919&&model_id=227239

Gene.