After I conferred online with your tech, I ordered the float assembly for this model. It arrived a few days later, and I installed it yesterday afternoon. The dishwasher worked perfectly after I put the part in. The installation was about a 7 out of 10 for difficulty, but it was something that anyone handy with tools could accomplish.
My thanks to you for the help; the appliance is in a rental, and the renter was without her dishwasher for about a week and a half. The part cost $28 shipping included, and saved us a service call from the service center. I will definitely contact you with any future appliance problems.