The equipment in this month’s troubleshooting problem is an electric furnace that has been in service for at least ten years, according to the customer who is reporting that the unit is running almost ...

We’ve all had those long days where you wish you could just find the electrical problem and get to the next job — or go home! The best way to try and avoid these frustrating days is to review prints ...

Not knowing how to troubleshoot electrical issues is a death sentence for any DIYer’s bank account. Your only other option is a wild goose chase by throwing money at your car until the problem’s fixed ...

As an electric motor’s rotor turns in close proximity to the motor windings, a bucking voltage or back electromotive force (EMF) is generated. The back EMF (BEMF) generated across the start winding is ...

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 ...

He also has extensive knowledge of, and practical expertise with, the National Electrical Code (NEC). Through his consulting ...

Electrical gremlins in Chevy and GMC trucks can be frustrating, but the right mix of wiring diagrams, ground checks, and diagnostic tools can make them manageable. Understanding your truck’s ...

Let’s face it: Diagnosing electric problems is a pain, to say the least. You can get far with a test light and your trusty digital multimeter, but you still might end up just throwing parts at the ...

Older homes can look finished while old electrical problems stay hidden. A room may have fresh paint, new flooring, and ...