KitchenAid Wine Cellar Thermostat

Greetings,

I have checked continuity on my wine cellar thermostat and do no get any reading after moving the control back and forth. Was to hoping to confrim this would indicate a faulty thermostat and also like to get some advice on replacing it.

I see it is mounts on a bracket with 2 leads which makes it easy to disconnect. It also has a metal lead (assume it is the temperatur sensor) and have no idea how to disconect it as well as reposition the new one. Any advice out there? Thanks