Winemate Cooler Won't Turn Off

Having a new issue with my WineMate cooler in my Vinotemp cellar. It still cools just fine, but it never shuts down. Even if I set the temp at 60 or 65 it just keeps running until it hits 52 degrees or so and then eventually starts icing up.

Reading some manuals it seems it might be a bad temperature controller since the thermostat seems to be reading just fine and the cooler is working as it has.

Anyone have prior experience with this type of issue?

One of my customers returned one due to a temperature controller fault, end up for a replacement. I hope this helps!