When NOT to use a LoZ Meter

LoZ meters are valuable tools for identifying ghost voltages and compromised voltage sources that exhibit high impedance upstream. When troubleshooting AC mains circuits, it is generally recommended to use the LoZ mode. This mode introduces a load at the test point, which proves advantageous because the circuits being tested are typically of low impedance compared […]

Electric Power FAQs

Frequently Asked Questions about Electric Power is another in a series of FAQS about electricity and electronics that are oriented toward Appliance Technicians and HVAC Technicians. Frequently Asked Questions about Electric Power Q. What is Electric Power?A. It is the rate at which electrical energy is transferred to a Load by a circuit. Q. How […]

Ohm’s Law FAQS

Frequently Asked Questions about Ohm’s Law is another in a series of FAQS about electricity and electronics that are oriented toward Appliance Technicians and HVAC Technicians. Frequently Asked Questions about Ohm’s Law Q. What is Ohm’s Law?A. It is an empirically (via experimentation) established law which states that voltage, current, and resistance are mathematically related […]

Voltage, Current, and Resistance FAQs

Below is another list in a series of Frequently Asked Questions (FAQS) about electricity and electronics that are oriented toward Appliance Technicians and HVAC Technicians. Frequently Asked Questions about Voltage, Current, and Resistance Q. What is Voltage?A. Voltage is the electromotive force or “pressure” that tends to push charge particles (such as electrons) through a […]

Basic Circuits FAQS

Below is another list in a series of Frequently Asked Questions (FAQS) about electricity and electronics that are oriented toward Appliance Technicians and HVAC Technicians. Frequently asked questions about Basic Circuits. Q. What is an electric circuit?A. It is a continuous loop of conductive material that allows current to flow from one side of a […]

240v Point-to-Point Troubleshooting Cheat Sheet

If an electric range or dryer is not heating, the element may not even be getting voltage. What if the element “ohms” out? If the 240v load in an appliance is not energized, sometimes just “ohming” things out doesn’t tell you what you need to know. Please note that this guide is for qualified technicians […]