How to Use a Multimeter – The Basics

Introduction In this article, I show the very basics of multimeter usage using both a Fluke and a Klein multimeter. You’ll learn to effectively use the multimeter to test AC voltage, DC voltage, resistance, AC and DC current, as well as accurately measure temperature. At the end of this article, I’ll give you the resources […]

Donate to Great Appliance (Clicks-on, Inc.)

I don’t mind helping talk people through their appliance problems or referring them to someone when I am backlogged or not the best fit for your needs. You can show your appreciation to Great Appliance (via parent company Clicks-on, Inc) by donating via one of two methods: Or click on this <LINK HERE> Or.. Donate […]

Youtube Video – Open Neutral Testing in 120v Circuits

How do you test for an open Neutral in 120V circuits or outlets? In this video, I show you how how to test for an open or loose neutral in 120v outlets with a regular Multimeter, a LoZ meter, and a Voltage Pen. Yes, it is possible to test for such an open or loose […]

Youtube Video – Whirlpool Electric Dryer Schematic Voltage Map Walk Through

How do you read an electric dryer schematic? In this video, voltages maps overlaid on a schematic for a common Whirlpool made electric dryer. What voltages to expect for different operating scenarios and failures. You will be walked through all relevant functional states of this dryer, as well as its common failures. Within these walkthroughs, […]

Subscribe to the Tech Circuit YouTube Channel

The Tech Circuit Youtube channel to date, had nearly 100 videos on practical electrical theory for Electronics Technicians, Appliance Technicans, HVAC Techncians, Hobbyists, and any body that has an interest or need to learn more about practical electrical theory, diagnostics, and associated concepts. In this blog, we’ll highlight some of the most popular videos that currently foster thousands of views per month.

Open Neutral Testing in 120V Circuits

Electrical issues can sometimes be misleading, with outlets appearing to function properly yet failing under load. In this blog, we’ll walk through a real-life example of how to diagnose and troubleshoot a 120v electrical outlet with a loose or floating neutral connection. By understanding the tools and methods involved, you can help determine whether the […]

DryerNotHeating.com: A Must-Have Resource for Appliance Technicians

For appliance technicians seeking to deepen their knowledge and troubleshoot effectively, DryerNotHeating.com is an invaluable resource. This comprehensive site is dedicated to educating professionals about the many reasons why dryers stop heating, providing a wealth of technical insights into common and uncommon issues alike. Technicians can explore detailed guides on diagnosing faulty components such as […]

What’s the Difference Between a Ghost Voltage and a Compromised Voltage Source?

Disclaimer: THIS BLOG IS INTENDED FOR APPLIANCE TECHNICIANS ONLY. ALWAYS USE APPROPRIATE SAFETY PRECAUTIONS WHEN WORKING WITH ELECTRICITY. THIS BLOG IS FOR INFORMATIONAL PURPOSES ONLY. IF YOU CHOOSE TO UTILIZE THE CONCEPTS IN THIS BLOG, YOU DO SO AT YOUR OWN RISK. THE AUTHER ASSUMES NO RESPONSIBILITY OR LIABLIITY FOR ANY ERRORS OR OMISSIONS IN […]

How Long does it Take for a Microwave Oven Capacitor to Discharge?

Intro In the 1970’s bleeder resistors on microwave oven high-voltage capacitors started coming into the picture amid safety concerns. By the early 1980’s they started becoming more standard. However, there are plenty of units out there without bleeder resistors, that can hold a charge for a very long time (weeks to even months), due to […]

Five ways to use Ohm’s Law in Appliance Repair

Understanding Ohm’s Law is not only essential for building a strong foundation in electrical theory but also serves as a valuable tool for diagnosing electrical problems. Although many technicians know about Ohm’s Law, some may not use it because they don’t see its relevance or don’t realize when it can be helpful. Ohm’s Law allows […]