The digital voltmeter is the best basic tool for electrical troubleshooting, because it's calibrated and exact. But remember, the digital voltmeter can't detect a high-resistance fault if the circuit ...

Branch circuits are undoubtedly the most commonly installed circuits in both residential and non-residential applications. And, since they supply the equipment that utilizes the electricity, they are ...

When something goes wrong with a car's electrical system, it can be so frustrating and infuriating to diagnose that we sometimes just throw up our hands and blame the gremlins lurking in those ...

Have you ever had a trailer’s electric brake or lighting systems not operate properly and weren’t sure where the problem originated? It could be the result of an electronic brake controller, ...

We may receive a commission on purchases made from links. When undertaking DIY electrical projects at home, safety should always come first. Whether you're adding a dimmer switch, installing a new ...

As an industrial electrician, you'll encounter many complex electrical circuits and drives that will break down as they age. Chances are, you won't be an expert in repairing these devices, but you can ...

A good digital multimeter (DMM) is key to diagnosing compressor problems in general. For instance, in a previous article (May 15 issue of The NEWS) we discussed using the DMM to read suction and ...

Luckily for driver Bob, he wasn’t following a convoy of bikers down the highway when his horn started blowing and kept on blowing. While driver Jane might have looked a bit silly with her windshield ...

Electrical problems are one of the most common problems encountered by technicians in the field. One common pitfall service technicians fall into is approaching the issue by testing specific ...

In this educational film, Mr. Grant explains the basics of electricity to Frank and Joan while repairing Joan's flashlight. He demonstrates how a broken wire prevents electricity from flowing, leading ...