Kenmore HE2 Plus 110.47512600 Error Code F30 = Dispenser System Error. Have reset CCU multiple times. When cycle starts, dispenser motor runs for 3 minutes (~11 revolutions) then stops with F30 error

After getting the F30 error code and reading this solution, I removed the top cover of my washing machine to find that it was, indeed, mechanical failure in the linkage between the dispenser motor and the top of the dispenser. My hard water had caused build-up that kept the plastic arm from moving freely. I cleaned it up and, voila, I'm doing laundry again. Thanks! After getting the F30 error code and reading this solution, I removed the top cover of my washing machine to find that it was, indeed, mechanical failure in the linkage between the dispenser motor and the top of the dispenser. My hard water had caused build-up that kept the plastic arm from moving freely. I cleaned it up and, voila, I'm doing laundry again. Thanks!