About the Book
HVAC Troubleshooting and Fault Diagnosis is a practical field guide for technicians, maintenance engineers, supervisors, facility teams, and students who need a structured method for identifying and correcting heating, ventilation, and air-conditioning problems.
Instead of relying on guesswork or repeated part replacement, the book emphasizes a disciplined diagnostic sequence: confirm the complaint, collect operating data, separate symptoms from causes, test the simplest possibilities first, verify the fault, make the correction, and confirm stable operation.
The coverage moves from safety and diagnostic thinking to electrical faults, refrigeration faults, airflow and duct problems, compressors, condensers, evaporators, fans and motors, controls, sensors, thermostats, VRF/VRV systems, chillers, cooling towers, pumps, preventive maintenance, and systematic fault trees.
Tables, field checklists, symptom-to-cause reasoning, measurement guidance, and practical examples are included so the book can function as both a study reference and a maintenance-floor handbook.
About the Author
Chetan Singh Chauhan is an engineering and maintenance professional with practical experience in industrial electrical and maintenance environments. His technical interests include equipment reliability, preventive maintenance, electrical systems, drives, motors, transformers, energy management, troubleshooting, and practical engineering education.
His approach to technical writing focuses on converting complex engineering subjects into clear field-oriented steps that can be followed by technicians and engineers during inspection, maintenance, and fault diagnosis.
This book reflects that practical philosophy: measure before assuming, isolate the fault before replacing parts, document the evidence, and always restore the system to a safe and verified operating condition.