Refrigeration and Air Conditioning Trouble Shooting Calculator

For sale is a New Air Conditioning and Refrigeration Trouble Shooting Calculator. On the front and back side of the guide is a comprehensive chart with 19 categorized symptoms, possible causes and repairs. This is a very useful tool for troubleshooting almost any type of problem. This item is made of thick cardboard stock with metal corner rivets and measures 10 inches tall by 4 inches wide.