Symptoms: Top rack not cleaning. Spray arms not spinning.
Inspection: Removed all bottom plastic pieces ok and found chopper assembly screen clogged. Chopper female shaft ok but impeller male portion worn down.
Problem: On diagram, I cannot buy the impeller separately from the motor? Part 20(motor) and 22(impeller parts) are both for the "motor-pump" at about $100. I just need the impeller piece. And then my next question is do i need to take out the motor to remove the impeller or can the impeller be taken out from inside the washer?
I did re-assemble everything and, after one wash, it is working better (at least spray arms are turning).
Thank you for any assistance!