I have a 4-year old GE Potscrubber 950 dishwasher. It is leaking water from underneath. When I remove the kick panel at the bottom, I can see water leaking from the middle of the motor housing (pump?). It leaks during the wash and rinse cycles when the motor is running and then continues to drip during the dry cycle.Any suggestions for repair? Will the pump need to be replaced? If so, what is the cost relative to replacing the entire dishwasher?