The basics: Electricity 101 for service technicians
Most hvacr equipment manufacturers now include some sort of self-diagnostic system to help service technicians in troubleshooting their products. However, service techs still need an understanding of electrical circuitry in order to troubleshoot effectively.
This article covers the basics to help aspiring technicians gain an understanding of electrical circuits. Some examples refer to familiar household items, such as flashlights and lightbulbs.