A good digital multimeter (DMM) is key to diagnosing compressor problems in general. For instance, in a previous article (May 15 issue of The NEWS) we discussed using the DMM to read suction and ...

The blower motor plays an extremely important role in forced-air systems. It’s the trigger that circulates conditioned air throughout the home. Blowers in older furnaces generally employ single-speed ...

In Part 1 of this two-part series, we presented a 3-phase, 480VAC motor circuit with its associated controls (Figure). We stepped through a logical, systematic approach to troubleshoot the main power ...

Because the causes of machine vibration are so numerous, the underlying problem is often difficult to isolate. Most troubleshooting processes rely on advanced diagnostic techniques and result in the ...

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 ...

With a little know-how, you can soon learn how to diagnose and fix common problems with your lawn mower's engine. Ah, spring, time to get outside and do. Cut that grass! Turn that soil! So you roll ...