So my side by side refrigerator/freezer goes out intermittently. I will go to work in the morning and everything is frozen in the freezer, when I arrive home everything is half thawed. I can unplug it and plug it back in and it will start cooling again. The condenser and evaporator fans are running and my condenser coils are clean. I’m thinking my defrost thermostat is malfunctioning. That logically makes sense to me and some research seems to back me up. Thoughts?