I hired a Bosch-certified repairman, b/c of prior experience of trying to get a diagnosis from online parts retailers. For a $125 fee he diagnosed the problem, a faulty water inlet valve. He estimated the repair to be $150 for the part, plus $83 for labor = $237. I declined & purchased the part for only $35 at AppliancePartsPros, plus $9 for expedited shipping. It arrived in about 4 days & the install was easy b/c it wasn't necessary to pull the dishwasher out. The valve is just behind the kick board. The machine works like it should now, which is fantastic!