Part 1 in this series covered defrost cycle problems in heat pumps. Now, let's discuss the second major winter issue: heat pumps stuck in one mode. The customer calls and says the system won't switch ...

This technical primer breaks down defrost control board operation, key components, and practical troubleshooting steps every ...

If your battery is dying on you, the cause might be what's known as parasitic drain. Here's what it is, how it happens, and ...

When you’re testing or debugging some mains-powered gear, plugging it directly into the outlet can often be an exciting ...

Editor's Note: January 20, 2026: We stand by our current selections below and have verified competitive pricing and availability. With spring just a few months away, we're calling in products to ...

How to know if your electric meter is faulty: Nowadays, electricity has become a necessity in every home. Fans, refrigerators ...

Ground Fault Circuit Interrupter outlets quietly guard the most dangerous spots in your home, cutting power in a fraction of ...

WIND GAP, Pa. — Genetic testing for medical purposes is known to be expensive, but a new community health research program is now offering lifesaving answers for free. When 38-year-old Nick Lumi first ...

The Neoteck 3-in-1 pen multimeter is a great choice for DIYers and amateur tinkerers, especially at its price.