The right control panel, i.e. The 4 buttons, can only be operated under pressure.
They don't get stuck and they aren't glued either. I push the buttons to the bottom of hell, and then I can speak of happiness when sometimes a miracle happens to me out of the blue by at least briefly doing what they are actually there for…
I have already operated the controller, but it seems that every rescue comes too late. Organ failure.
Organ failure = exchange
All right. I will follow your tip and take care of the upcoming operation and everything that is necessary to save the body.
The carbon layers under the push-button pads are probably worn out…
there are repair pens, but they don't last forever either…
https://www.reichelt.de/de/de/reparatursatz-fuer-gummitastenkontakte-cw-2605-p50466.html?PROVID=2788&&r=1
but first check whether it is really carbon pads…
I just tried it again. The following:
It can hardly be operated with the housing.
Now I have tried it without the housing and operated the rubber pad directly. And et voila it works. So there's something wrong with hasi.