SPECTRALIS I:Encoder 1 don't work when I push it.
The encoder cap probably is just sticking at a low position since transportation. Just remove the cap and check the encoder button without the cap. If it works then, just put the cap onto it again. I am sure, it will come to work then again. If you look from the side you can see, that a cap with a too low position is pushing against the encoder shaft. So the movement can not trigger the button anymore.