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 ...

Troubleshooting electrical malfunctions can be frustrating because breaks in insulated wires or within components are not obvious. The most efficient way to pinpoint electrical problems is by ...

The core of a refrigeration system is the compressor, which is designed to pump cool refrigerant gas from the evaporator into the condenser. To accomplish this task the compressor raises the ...

Your electrical services firm has a new commercial client. They own 35 rental properties, including a recently purchased six-unit apartment building. It was built in the 1970s and has been remodeled ...

From the earliest days in vehicle history, electrical energy has been used for powertrain, lighting, and a multitude of accessories. Today, modern vehicles use multiple microprocessors onboard and all ...

A particular production line is generating more than its share of trouble calls. The line supervisor has put in several work requests to correct “motor speed deviation,” “inconsistent motor speed,” ...

The digital voltmeter is the best basic tool for electrical troubleshooting, because it's calibrated and exact. But remember, the digital voltmeter can't detect a high-resistance fault if the circuit ...