How can I fix my Danby Dual Temp Wine Fridge?

The Danby Dual Temp wine fridge seems to keep the top at a cool temp but the bottom seems to always rise higher and pull the top temp up too. It is like it is working against itself and it is almost always running with the both fans cutting in and out. Can I somehow just make it work as a single temp fridge using the top part which seems to be OK?