Why won't my ewf148420 not spinn out

After 3 day of studying i am on my way to give up.

The Maschine was not able to spin up to his 1400 rpm. I check pump, bearing and suspension. Find a little slak in bearing and bad suspension. Change everything, clean and check pump, but the problem is exactly the same. Get into troubleshooting menu, test everything, all is okay. In spin modus the trumble gets 1370 rpm. Delete fault measages and tru again. Same problem.

Feels like the machine wobble more in spinning mode, also when it is empty.. And when it start wobble it gives up spinning and reverse for a new try. In troubleshooting menu there is no kind of wobble.

Can someone give me a hint here?