While using a digital multimeter to diagnose electrical problems on customers’ equipment, I frequently hear the comment, “I’ve got one of those multimeter things, but I never learned how to use it.” ...

How to Test a Contactor is a critical procedure in diagnosing and ensuring the reliability of electrical systems, especially in air conditioning and heating applications. When they fail, they can ...

How do you know if a resistor is correctly restricting the flow of electricity? Using a multimeter is an obvious answer. However, there is more to it than meets the eye. This article will explain what ...

If you’d like to fix or even diagnose anything involving electricity – whether it’s the energy that surges through a car, snowmobile, boat or even a wall socket or a random AAA remote control battery ...

The need to perform continuity testing - For initial verification of a new electrical installation, or an addition or alteration to an existing installation, it is ...

Q: My wife wanted me to install a dimmer switch in our dining room — and now the chandelier works only half the time. Two switches in the room control the light. Since I tried to install the dimmer, ...