на кухне стоит духовка но если навестись на неё пишет что она не работает/there is an oven in the kitchen at the base, but if you aim over it, it says that it is not working

I think it's just decoration at least for now, they still didn't work before but now they added the hover text recently.

Looks like you need to use the screwdriver to undo the panel.
With nothing in hand, connect red output to the correct blue input. You'll know if it's the right one if it doesn't make a sound.
The last step was where I got stuck for a bit. You need to grab a wrench and click all the blue sockets till they're all in.