In this Cheat Sheet, you’ll find most every bit of electrical information that Field Technicians need while on-site or in an academic setting. Most notable are “Electricity Basics”, “Ohm’s Law”, “Basic Circuits”, “Appliance Topologies”, “Diagnostics”, and “Formulae”. Bookmark this page for quick reference for whenever you may need to reference such information, or to just […]
The Tech Circuit’s mission is to better educate Appliance and HVAC Technicians in the area of electrical and electronics diagnostics and repair. There is clearly a need for increased education in this area – and the effort is endless. Although I thoroughly enjoy this mission, it does take time to maintain TechCircuit.org and the Tech […]
Correct and Incorrect Terminal Block Connections For many 240v appliances that plug into a receptacle, there are two common types of power cords. One is old-style 3-wire cord and the other is a relatively new 4-wire cord. Disclaimer: THIS BLOG IS INTENDED FOR APPLIANCE TECHNICIANS ONLY. ALWAYS USE APPROPRIATE SAFETY PRECAUTIONS WHEN WORKING WITH ELECTRICITY. […]
Intro This article, for beginning to experienced appliance technicians, explains some of the more commonly found 120v and 240v Appliance circuit topologies and describes how to perform their respective point to point voltage check diagnostics for brute-force isolating of failed components. Please note that this article is not or DIY (do it yourselfers), as it […]