John for Model Number DU640 I replaced the chopper unit and it still makes a whining noise. When apart it looks like the part on the impeller may be worn. Do you really need to replace the motor because of this little plastic part?? (Front of part 22)
Answer Hello John. It shows it separately, but the manufacture has changed it to the motor-pump assembly. Hope this helps. Read More... Answered by AppliancePartsPros.com | Friday, March 11, 2011