Kenmore Coldspot refrigerator Feb 99 Model 57562792 – there’s no water coming out of the water dispenser, however it is making ice. The lines are not clogged. There is a small unit in the lower corner in the back where the main water line goes into. There are two waters lines coming out of it - one seems to be for the ice, the other for the water. Could that small unit be not working on just the water side and the side making the ice be okay? If that is the case, then should I think about replacing that unit? What other reasons could there be for suddenly no water?