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 ...

We’ve all had those long days where you wish you could just find the electrical problem and get to the next job — or go home! The best way to try and avoid these frustrating days is to review prints ...

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 ...

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 ...

The day will come when trucks no longer have hood latches. Where the latch was will be a sticker that says, “Do not open. No user-serviceable parts inside.” Until then, we will still have electrical ...

When something goes wrong with a car's electrical system, it can be so frustrating and infuriating to diagnose that we sometimes just throw up our hands and blame the gremlins lurking in those ...

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 ...

Class A motorhomes and smaller campers typically run on both AC and DC power. The former is your electrical hookup at the campground. It runs the energy-demanding thing like your air conditioner, ...