If defrost isn’t working, something in the chain is broken. This step-by-step approach shows you exactly where to look and what to test.

We’ve all experienced that magic moment when, after countless frustrating hours of experimentation and racking your brain, the object of our attention starts working. The 3D printer finally produces ...

A common metering device used on new walk-in cooler/freezers today is the electronic expansion valve (EEV). It allows for a tighter control of a refrigerant’s superheat value leaving the evaporator ...

Our smartphones have become our faithful companions. From road trips to work, we take them with us everywhere and rely on them to help us get through the day. If we need directions to an unfamiliar ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Many of us are so reliant on our computers that it’s a serious ...

The Windows operating system ships with native troubleshooting packs you can run to fix issues with audio, video playback, Windows Update, internet connection, etc. If you want, you can add/remove ...

Gas detection techniques have a fascinating history, dating back to the 19th century when canaries served as early warning systems for toxic gases in coal mines. When coal emerged as the Industrial ...

Troubleshooting live electrical circuits can pose a hazard not only to the equipment being worked on, but more importantly, to the person performing the labor — especially if that individual lacks ...

Microsoft offers numerous useful tools that can help users and admins diagnose problems in Windows 10 and 11. Here’s how to use them for best results. As people use Windows 10 or 11 in their daily ...

Implementing 802.1X authentication, which includes everything from setting up a RADIUS server to keeping end users connected, isn't easy. Implementing 802.1X authentication, which includes everything ...