Affiliate and author disclosure: This article contains affiliate links. I may earn a commission from qualifying purchases at no extra cost to you. I am also the author of the book featured in this article, so this is not an independent third-party review.
When industrial equipment stops, the obvious-looking component is not always the one that failed.
A motor refuses to start, so the motor gets blamed. A PLC input stays off, so someone suspects the input module. A VFD trips, and suddenly everyone is discussing the price of a replacement drive.
Sometimes they are right. Quite often, they aren’t.
The real cause might be a loose terminal, missing control voltage, damaged sensor cable, overloaded mechanism or one burned contact inside a starter. That is why I wrote Industrial Electrical Troubleshooting: A Practical Field Guide to Diagnosing Faults in Motors, Drives, Control Circuits, Sensors, Power Systems, and Industrial Wiring.
The book is designed for maintenance technicians, industrial electricians, engineers and technical students who want a logical troubleshooting process rather than a parts-swapping competition.
[Industrial Electrical Troubleshooting]
What the Book Covers
The guide focuses on electrical problems commonly found in factories, workshops, processing plants and automated machinery.
Topics include:
- Three-phase motors and motor starters
- Contactors, relays and overload protection
- Variable frequency drives
- Industrial control circuits
- Sensors and PLC inputs
- Power supplies and distribution faults
- Electrical wiring and terminal problems
- Multimeter and clamp-meter testing
- Voltage drop, phase loss and current imbalance
- Intermittent machine faults
- Reading symptoms and narrowing down causes
The aim is not simply to list faults. It explains how to approach them in a repeatable order.
Why This Book Is Useful
This book is very useful because industrial electrical faults rarely appear in neat, predictable ways.
A machine may stop because a sensor failed—but it may also stop because the sensor lost its 24 V supply. A motor overload might trip due to excessive mechanical load, phase loss, an incorrect setting or a poor connection inside the starter.
The symptom is only the beginning.
The guide encourages technicians to separate the system into smaller sections:
- Confirm the incoming power.
- Check the control supply.
- Follow the control circuit.
- Verify the output command.
- Test the load and connected equipment.
- Compare measurements with the expected values.
This method helps you prove what is working before replacing anything.
It sounds simple. During a breakdown, with production waiting and several people asking whether the machine is fixed yet, simple methods are often the ones that get forgotten first.
Who Is the Book For?
Maintenance technicians
The book provides a practical structure for diagnosing electrical faults across different types of industrial equipment.
Industrial electricians
It can be used as a reference for motor circuits, control panels, sensors, drives and industrial wiring problems.
Automation technicians
PLC diagnostics are important, but the fault may still be outside the program. The guide helps connect software indications with the physical field devices and wiring.
Apprentices and students
The explanations are practical and focused on real troubleshooting rather than unnecessary theory. It is especially useful for readers who understand basic electrical principles but need more confidence applying them.
Troubleshooting Without Guessing
A good troubleshooter does not need to know the answer immediately.
The important skill is knowing what to test next.
Start with the symptom, but do not trust it blindly. Check whether the fault occurs during starting, normal operation or stopping. Measure the supply under real operating conditions. Follow the circuit until the expected voltage or signal disappears.
One step at a time.
This usually works better than replacing the most suspicious-looking component and hoping the machine behaves itself tomorrow.
Is the Book Worth Reading?
Since I wrote the book, I am not presenting this as an independent review.
However, I believe it is a genuinely useful resource for anyone who works with industrial electrical equipment. It brings motors, drives, control circuits, sensors, power supplies and wiring faults into one practical troubleshooting guide.
It will not replace professional training, machine documentation or proper electrical safety procedures. Industrial equipment may contain hazardous voltages, stored energy and machinery capable of starting unexpectedly.
Used alongside proper training and safe working practices, though, this book can help you diagnose faults more confidently, take more meaningful measurements and avoid replacing perfectly good parts.