Walk-In Cooler Evaporator was iced up when I arrived, so I deiced it. I noticed the new expansion valve had the wrong power element on it causing it to run a high super-heat. I replaced the power element and checked operation. I then found the thermostat was still calling for cooling at 34 degrees, and I had to turn the dial to almost 50 degrees to get it to shut off. Thermostat isn't sensing the proper temp so I replaced it. The cooler is now working properly. ** No charge travel and miles per Service Manager