The most common—and often most frustrating—questions that trainers and senior techs get asked sound something like this: “What should my ______ be?” or “My _____ is at ______. Does that sound right?” Usually, when the conversation is over, both the senior and junior techs walk away feeling frustrated because the junior tech just wanted […]

Capacitors are traditionally tested with a capacitance meter (commonly found as a function within a multimeter), with the component taken entirely out of the circuit. “Bench testing,” as this method is referred to, is hands-down the safest method of checking capacitance in microfarads. All other methods require the capacitor to be wired into the circuit […]

Courtesy of Emerson It is important to have refrigerant free from debris and contaminants, and we control these issues on many different fronts. 1. Proper tubing handling prevents copper shavings, dirt, and water from entering while installing. 2. Flowing nitrogen while brazing prevents carbon build-up. 3. Deep vacuum of 500 microns or less removes air, […]