I have a Maytag dishwasher model mdbh979awb1. It appears that the dishes are not cleaning well due to not enough water either entering or staying in the washer. The soap packet is not even dissolving. I have felt the drain line going in to the sink drain and it does not appear to be draining? Rather it does not seem to be getting enough water in the washer? The dishwasher appears to electrically go through a whole wash cycle by the controls.