Anonymous posted an answer for this Hoover 24 in. DT999 Free-Standing Dishwasher:
"I have just encountered the same problem as chrisbk23. The lower rack washes okay but the..."
Anonymous posted an answer for this Maytag 24 in. MDB8600AW Jetclean II Built-in Dishwasher:
"It could be the impeller on the motor. The impeller fits over the shaft of the motor and..."