This machine washes fine but when in the spin cycle it distributes the load then starts a slow spin then stops then repeats and stops until end of cycle.
Tried it with no load on spin only cycle and it will go to a fast spin for a few seconds then stop and repeat but the whole cycle is very short (about 1 minute).
This sounds like there is a problem with the tacho on the motor. Could need replacing. If you are looking yourself make sure you are safe and always unplug while checking.
Hope this helps.