Arrived at location on 1/20/23 - Upon arrival I had Bryan show me where the walk in is. I first thought the call was for a frozen evaporator, however they advised me that they shut the unit off at the breaker because it was freezing their wine bottles and other product inside. Box was at 25. I checked the thermostat and found it wasn’t sending anything to the unit. Removed old thermostat and installed new one. Powered unit back on and set the thermostat for 38 degrees. Watched unit satisfy and made sure temperature reading was accurate. Unit is working properly at this time.