I recently replaced the control assembly because I had problems with the mixer shutting off or not starting at all. Since replacing the control board the mixer now surges between the low speed selected and high speed back and forth rapidly. Makes the product in the mixing bowl come flying out of the bowl. What can I do to correct this?
Answer Tony, Since your mixer is the "solid state" version of the mixer, if you're sure you installed the correct speed control board for your model and serial number, the next step would be to test or replace the hall sensor 9703312. If the sensor has failed, is not in the proper position, etc. the motor speed will be erratic and cause the symptoms you described.
Speed works on slower side, When I speed up it shuts off or works intermittently.
Based on the issue described it sounds like the speed control may be faulty and need to be replaced.