Turns on and off on low speed setting

Hey! About 2 months ago i took the challenge to repair my kitchen aid, took my time and watched some videos on what could be the problem.

The mixer wouldnt turn on so i figured it would be a dead motor. so i measured it and it was fine so i purchased a new controlling board and swapped it. And the thing turned on. The problem now is that it shuts off and on at the lowest speed setting and im figuring if its the "speed regulator" the little brass spring that sits on the motor shaft but it seems fine.

So now im turning this question to you pros what could be the problem? The best would be if i could submit some sort of video of it running so i could explain it better