I have a GE dishwasher that the builder had put in for us. Over the last few weeks, when we start the normal wash cycle, the water fills up normally, but then it gets stuck. no water is sprayed through the top or bottom sprayers. The cycle continues on and the detergent container pops open releasing the detergent in a dry environmemt. We have had to reset the cycle and sometime it would work normally and now it does not any more. All the lights on the control panel appear to function properly. I did a F1 cycle test and could not come up with any error codes. Is this a problem with the motor, the control panel, or ? Any advice is greatle appreciated.