My Bosch KGV3120GB/01 fridge/frezer "no automatic re-start" problem fixed as follows.
My Bosch KGV3120GB/01 has 4 wires (2 blue, 2 brown) from the PCB plug at the right hand side (closest to the on/off switch) behind the panel in top of the front of the fridge.
I could see that the Dark Brown/Light Blue wires go as one cable into the fridge and that the Light Brown/Dark Blue as another cable.
I cut the Dark Brown with Light Blue and joined them at the plug to the PCB, and left the Light Brown and Dark Blue as they were. That fixed my fridge problem and it is now running fine.
It switch off around 5 degrees and on around 7 degrees with the "1- > 5 adjustment dial" on 1 (the temperature can be adjusted by the "1- > 5 adjustment dial").
This fix indicates that the Light Brown/Dark Blue wires must be the connection to the temperature sensor.
ClausMC
May 2011