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 […]

On an energized, intact circuit, you will read voltage across an OPEN switch when testing with a voltmeter. However, you probably won't read significant voltage across a CLOSED switch. Both sides of a closed switch are electrically identical (or at least very close). Therefore, there should be no movement of electrons between the leads of […]

As a leader, it’s healthy to take a step back and see if you’ve become “That Boss.” You know, the one who nobody wants to work for and who doesn't have a shred of self-awareness. I worked at a large corporation for 5+ years, and it was easy to tell which managers valued employees. It […]