Potential relays are commonly found on many smaller, single-phase, capacitor-start, capacitor-run motors in the HVACR industry. Their function is to assist in starting the electric motor. Potential ...

The relay's primary appeal is its ability to do a lesser-switch's bidding but it's capable of so much more. Relays can be wired together to create very useful, simple, and utterly reliable networks.

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 ...

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 ...

From flickering lights to a dead starter, car electrical issues can be frustrating and costly if misdiagnosed. Learning the right tools, techniques, and step-by-step strategies can save you time, ...

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 ...