My bottom oven of my Neff 8507 does not work There is no heat
no fan and no light Is it repairable.

allen, July 2016

When mine did this the element had blown taking the fuse with it. New element was easy and cheap to install. Ditto fuse. When it blew again 2 weeks later I mended it with a new one at which point I discovered the idiot installer had installed with no ventilation slot, in fact he had screwed a batten over the ventilation slot to level the oven. I corrected this and have had no further problems - touch wood.
Good luck
Cheers,
Ian

Ian, August 2016

Anything is repairable.

George, August 2016

CHeck the timer to see that it has not been set to Auto and set it back to manual if it is

XXX, July 2016