While you wait for answers, we may have found some information which could help you.
Click here for Freezer Temp Keep Going OffBosch intelligent frost free 44?
Faulty light in Bosch Fridge Freezer?
Bosch KUR15A50GB fridge collects water?
Ice forming on outside of freezer?
Freezer builds condensation and freezes?
How do I mend my fridge/freezer?