GE Refrigerator water dispenser problem

My water dispenser does not work when you push the deal to get the water to come out. I checked that water was comeing out after the filter, and it was just fine. Then I checked where the connector is under the freezer door, and it works when I push the dispenser. So the problem is somewhere between the bottom of the freezer door and the dispenser. Any Ideas on what it could be?

Dave