If you don't use a scale every time you add or remove refrigerant, I suggest you begin doing so immediately, if not sooner. Weighing in while charging is fairly obvious, and it's useful so you can keep track of what you are using and how much to charge a customer. When you have a system […]

This tip was written by a 19-year service tech, Frank Mashione. Thanks, Frank. Here is a tech tip from the field that had stumped me. Luckily for me, I knew the right person to call to get back on track. This business has complained about heat calls for quite a while. I have heard other […]

Before we convert temperature scales, let's take a step back and think about what temperature is in the first place. Temperature is proportional to the average kinetic energy of the random microscopic motions of the constituent microscopic particles, such as electrons, atoms, and molecules. Translation: Temperature is the average “movement energy” of the molecules in […]