I just broke my Keon and opened it to see what is broken.
To my suprise no plastic part is broken, the coupler for the motor to the threaded rod tore (I assume due to material fatigue).
And I have to say, it is wonderfully repairable.
Anyone who did the power mod can easily replace it.
Photo:
Additional details:
The damage was announcing itself by some rattling (but it still worked then)
Also I assume the PowerBlow added a lot of strain due to the vacuum