Stop Guessing: HVAC Fundamentals for Beginners — Volume 1
Paperback $50.49
Hardcover $61.99
HVAC Books for Technicians, Apprentices and Students
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The Complete HVAC Troubleshooting System
eBook $12.99
Paperback $42.49
Hardcover $54.49
Stop Guessing: HVAC Electrical Wiring Made Easy
Paperback $34.49
Hardcover $46.49
Stop Guessing: HVAC Airflow Made Simple
eBook $12.99
Paperback $44.99
Hardcover $56.99
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Method, not guesswork
A logical diagnostic sequence that leads to the real cause of the failure.
Field experience
Two decades of installing and repairing equipment, explained step by step.
Beginner to professional
A clear path from first principles through advanced field diagnostics.
Study and reference
Useful for apprentices, trade-school students and experienced technicians.
Learning paths
Track 1 — Start here
HVAC Fundamentals for Beginners (Volumes 1–5)
A five-volume progression for apprentices, students and career changers. Read them in order to build the trade from first principles — how systems work, what to measure, and why.
- Volume 1
Stop Guessing: HVAC Fundamentals for Beginners — Volume 1
See this book - Volume 2
Stop Guessing: HVAC Fundamentals for Beginners — Volume 2
See this book - Volume 3
Stop Guessing: HVAC Fundamentals for Beginners — Volume 3
See this book - Volume 4
Stop Guessing: HVAC Fundamentals for Beginners — Volume 4
See this book - Volume 5
Stop Guessing: HVAC Fundamentals for Beginners — Volume 5
See this book
Track 2 — Airflow & static pressure
Stop Guessing: The Airflow Series
Airflow is where most comfort and capacity problems live. Start with airflow made simple, then move into advanced measurement, static pressure and duct diagnostics, and finally the compressor and refrigerant side.
- Step 1
Stop Guessing: HVAC Airflow Made Simple
See this book - Step 2
Stop Guessing: Advanced HVAC Airflow Diagnostics — Volume 1
See this book - Step 3
Stop Guessing: Advanced HVAC Airflow Diagnostics — Volume 2
See this book
Track 3 — Electrical & complete diagnostics
Electrical Wiring and the Complete Troubleshooting System
Two standalone references that work at any level: the electrical side of HVAC, and a complete troubleshooting method that ties every system together.
- Book 1
Stop Guessing: HVAC Electrical Wiring Made Easy
See this book - Book 2
The Complete HVAC Troubleshooting System
See this book
All HVAC books in English
HVAC Fundamentals for Beginners (Volumes 1–5)
Stop Guessing: HVAC Fundamentals for Beginners — Volume 1
The System, the Science, and the History of Air Conditioning
Roberto M. Morales · English
Volume 1 of the Stop Guessing HVAC series gives new students, helpers, apprentices, and future technicians a clear foundation before they jump into troubleshooting, refrigerant readings, and electrical diagnosis.
The entry point: how heating and cooling systems actually work, the vocabulary of the trade, and the habits that separate technicians from parts-changers.
Who it's for: New HVAC students · Apprentices and helpers · Career changers entering the trade · Trade-school students · Anyone who wants a clear on-ramp into HVAC
- The purpose and history of air conditioning
- How an HVAC system actually operates
- Heat transfer, airflow, humidity & comfort
- Indoor and outdoor units working together
- Why ductwork and refrigerant matter
- How to start thinking like a real technician
Paperback$50.49
The everyday print edition — keep it in the truck and use it in the field.
Hardcover$61.99
A durable reference edition for the shop or the classroom.
Secure checkout by Stripe. Printed books ship to the US, Puerto Rico and Canada.
Stop Guessing: HVAC Fundamentals for Beginners — Volume 2
Tools, Components, Refrigerant Charging Basics, Airflow, Electrical Basics & Installation Awareness
Roberto M. Morales · English
Volume 2 introduces the tools, components, and hands-on basics every new technician needs — refrigerant charging basics, airflow, electrical basics, and installation awareness.
Builds on Volume 1 with deeper system knowledge and the measurements that tell you what a unit is really doing.
Who it's for: New HVAC students who finished Volume 1 · Apprentices and helpers learning the tools · Trade-school students · Career changers entering the trade
- Core HVAC tools every beginner should know
- Major system components and what they do
- Refrigerant charging basics — safely
- Airflow fundamentals in the field
- Electrical basics without the fear
- Installation awareness from day one
Paperback$48.49
The everyday print edition — keep it in the truck and use it in the field.
Hardcover$60.44
A durable reference edition for the shop or the classroom.
Secure checkout by Stripe. Printed books ship to the US, Puerto Rico and Canada.
Stop Guessing: HVAC Fundamentals for Beginners — Volume 3
Maintenance, Troubleshooting, Diagnostics, Refrigerant Readings & Real Field Training
Roberto M. Morales · English
Volume 3 moves the beginner into real field work — maintenance, troubleshooting, diagnostics, refrigerant readings, and the habits that separate a helper from a technician.
The middle of the series: applying fundamentals to real equipment and real service calls.
Who it's for: New HVAC students who finished Volume 2 · Apprentices moving into field work · Helpers ready to start maintenance calls · Trade-school students
- Preventive maintenance done right
- First troubleshooting frameworks
- How to read refrigerant pressures
- Diagnostic thinking for beginners
- Real field training patterns
Paperback$48.49
The everyday print edition — keep it in the truck and use it in the field.
Hardcover$59.44
A durable reference edition for the shop or the classroom.
Secure checkout by Stripe. Printed books ship to the US, Puerto Rico and Canada.
Stop Guessing: HVAC Fundamentals for Beginners — Volume 4
Safety, A2L Refrigerants, EPA Basics, Codes, Permits, Manufacturer Instructions & Installation Quality Awareness
Roberto M. Morales · English
Volume 4 covers the safety, compliance, and quality knowledge a modern HVAC beginner must have — A2L refrigerants, EPA basics, codes, permits, and manufacturer instructions.
Advancing toward professional-level work: sharper diagnostics and a more disciplined service process.
Who it's for: New HVAC students who finished Volume 3 · Apprentices working with A2L refrigerants · Trade-school students · Career changers entering the trade
- Job-site safety fundamentals
- A2L refrigerants explained clearly
- EPA basics for new technicians
- Codes and permits — what beginners need to know
- Reading manufacturer instructions
- Installation quality awareness
Paperback$48.99
The everyday print edition — keep it in the truck and use it in the field.
Hardcover$60.44
A durable reference edition for the shop or the classroom.
Secure checkout by Stripe. Printed books ship to the US, Puerto Rico and Canada.
Stop Guessing: HVAC Fundamentals for Beginners — Volume 5
Professional Practice, Documentation, Ethics, Customer Service & Career Readiness
Roberto M. Morales · English
Volume 5 closes the beginner series with the professional practice, documentation, ethics, customer service, and career readiness habits that turn a new technician into a trusted one.
The capstone of the beginner series and the natural bridge into the professional diagnostics track.
Who it's for: New HVAC students who finished Volume 4 · Apprentices preparing for their first service role · Trade-school students · Career changers entering the trade
- Professional practice in the field
- Documentation that protects the tech and the customer
- Ethics on real service calls
- Customer service every technician should master
- Career readiness for the next 20 years
Paperback$48.62
The everyday print edition — keep it in the truck and use it in the field.
Hardcover$57.99
A durable reference edition for the shop or the classroom.
Secure checkout by Stripe. Printed books ship to the US, Puerto Rico and Canada.
Stop Guessing: The Airflow Series
Stop Guessing: HVAC Airflow Made Simple
Understand Airflow. Measure It Correctly. Diagnose Problems with Confidence.
Roberto M. Morales · English
A practical field guide that helps HVAC technicians understand airflow, measure system performance correctly, diagnose restrictions, and solve comfort problems with confidence.
Airflow explained simply: measurement, basic static pressure and correction on central systems.
Who it's for: HVAC technicians · HVAC apprentices · Trade-school students · Service managers · HVAC business owners
- Understand HVAC airflow fundamentals
- Measure static pressure correctly
- Identify airflow restrictions
- Evaluate blower performance
- Diagnose weak airflow
- Understand supply and return problems
eBook$12.99
Instant secure download — read on your phone, tablet or computer.
Paperback$44.99
The everyday print edition — keep it in the truck and use it in the field.
Hardcover$56.99
A durable reference edition for the shop or the classroom.
Secure checkout by Stripe. Printed books ship to the US, Puerto Rico and Canada.
Stop Guessing: Advanced HVAC Airflow Diagnostics — Volume 1
Advanced Field Measurements, Static Pressure, CFM, Cooling, Heating, Blower Motors, and System Performance
Roberto M. Morales · English
Move beyond basic airflow. Learn how to measure, interpret, and connect the operating numbers that reveal what the complete HVAC system is doing.
Volume 1: advanced measurement, static pressure and duct diagnostics with step-by-step field procedures.
Who it's for: HVAC apprentices · HVAC students · Maintenance technicians · Service technicians · Field supervisors
- Measure and interpret static pressure and total external static pressure
- Calculate airflow, CFM, and CFM per ton correctly
- Evaluate cooling performance and temperature split
- Evaluate heating performance and temperature rise
- Diagnose condensing-unit and evaporator performance
- Understand ECM and PSC blower motor behavior
Paperback$37.99
The everyday print edition — keep it in the truck and use it in the field.
Hardcover$49.49
A durable reference edition for the shop or the classroom.
eBook$12.99
Instant secure download — read on your phone, tablet or computer.
Secure checkout by Stripe. Printed books ship to the US, Puerto Rico and Canada.
Stop Guessing: Advanced HVAC Airflow Diagnostics — Volume 2
Compressors, Refrigerant Diagnostics, Superheat, Subcooling, Decision Trees, Case Studies, and Professional HVAC Troubleshooting
Roberto M. Morales · English
Transform measurements into reliable diagnostic decisions. Follow complete-system evidence, identify the true root cause, and verify every repair.
Volume 2: compressors, refrigerant and professional whole-system diagnostics.
Who it's for: Intermediate technicians · Experienced service technicians · Advanced HVAC students · Maintenance professionals · Field supervisors
- Read and interpret compressor diagnostic numbers
- Separate compressor electrical failures from mechanical failures
- Diagnose refrigerant metering devices and condensers
- Evaluate refrigerant charge using superheat and subcooling
- Follow structured diagnostic decision trees
- Troubleshoot the complete system, not one component
Paperback$41.99
The everyday print edition — keep it in the truck and use it in the field.
Hardcover$53.99
A durable reference edition for the shop or the classroom.
eBook$12.99
Instant secure download — read on your phone, tablet or computer.
Secure checkout by Stripe. Printed books ship to the US, Puerto Rico and Canada.
Electrical Wiring and the Complete Troubleshooting System
Stop Guessing: HVAC Electrical Wiring Made Easy
Learn to Read, Diagnose, Troubleshoot, and Wire HVAC Electrical Circuits with Confidence
Roberto M. Morales · English
A field-tested guide that teaches HVAC technicians how to read wiring diagrams, diagnose electrical faults, troubleshoot controls, and wire HVAC circuits safely and with confidence.
HVAC electricity and wiring: diagrams, control circuits, components, measurements and electrical fault diagnosis.
Who it's for: HVAC technicians · HVAC apprentices · Trade-school students · Service managers · HVAC business owners
- Read HVAC wiring diagrams with confidence
- Understand line-voltage and low-voltage circuits
- Troubleshoot contactors, relays, and transformers
- Diagnose capacitors safely and correctly
- Trace 24V control circuits step by step
- Identify open, shorted, and grounded windings
Paperback$34.49
The everyday print edition — keep it in the truck and use it in the field.
Hardcover$46.49
A durable reference edition for the shop or the classroom.
Secure checkout by Stripe. Printed books ship to the US, Puerto Rico and Canada.
The Complete HVAC Troubleshooting System
Diagnose Faster. Stop Guessing. Fix It Right the First Time.
Roberto M. Morales · English
A complete diagnostic system built on 20+ years of hands-on HVAC experience — engineered to help technicians diagnose faster, stop guessing, and fix it right the first time.
A complete diagnostic method: sequence of operation, airflow, refrigeration, measurement and confirming root cause before replacing parts.
Who it's for: HVAC technicians · Apprentices · Trade-school students · Service managers · HVAC business owners
- Based on 20+ years of hands-on HVAC experience
- Step-by-step field diagnostics
- Airflow troubleshooting
- Electrical troubleshooting
- Refrigerant diagnostics
- Compressor diagnostics
eBook$12.99
Instant secure download — read on your phone, tablet or computer.
Paperback$42.49
The everyday print edition — keep it in the truck and use it in the field.
Hardcover$54.49
A durable reference edition for the shop or the classroom.
Secure checkout by Stripe. Printed books ship to the US, Puerto Rico and Canada.
How to choose the right HVAC troubleshooting book
A troubleshooting book earns its place on the truck by answering three questions: does it give you a repeatable sequence, does it show the measurements rather than describe them, and does it match the work you actually do? Here is how these titles differ.
| Choose | When you need | What it gives you |
|---|---|---|
| The Complete HVAC Troubleshooting System | One diagnostic sequence for whole-system calls | Airflow, electrical, refrigerant and compressor diagnostics in a single order of operations |
| Stop Guessing: HVAC Airflow Made Simple | To stop misreading charge because of airflow | Static pressure and delivered airflow, from first measurement |
| Advanced HVAC Airflow Diagnostics — Volumes 1 & 2 | To prove where a restriction is | Component pressure profiles, blower tables, refrigerant-side depth |
| Stop Guessing: HVAC Electrical Wiring Made Easy | To read schematics with confidence | Ladder diagrams, 24V control logic and voltage-path testing |
| HVAC Fundamentals for Beginners (Vol 1–5) | To build the trade from zero | Safety, the refrigeration cycle, electrical basics and airflow, in learning order |
Not sure yet? Start with the free field guides — they use the same methods as the books:
Which book is right for you?
New to HVAC and want a clear, plain-English foundation before touching a system?
Stop Guessing: HVAC Fundamentals for Beginners — Volume 1
See this bookFinished Volume 1 and ready to go deeper into system behavior and readings?
Stop Guessing: HVAC Fundamentals for Beginners — Volume 2
See this bookComfortable with the basics and want to connect theory to what you see in the field?
Stop Guessing: HVAC Fundamentals for Beginners — Volume 3
See this bookWant to raise your work from 'it runs' to 'it performs correctly'?
Stop Guessing: HVAC Fundamentals for Beginners — Volume 4
See this bookFinishing the fundamentals and looking for the step that leads into advanced field diagnostics?
Stop Guessing: HVAC Fundamentals for Beginners — Volume 5
See this bookWant to understand airflow from the ground up and stop guessing why a system won't cool?
Stop Guessing: HVAC Airflow Made Simple
See this bookKnow the basics and want to master static pressure and duct diagnosis with real numbers?
Stop Guessing: Advanced HVAC Airflow Diagnostics — Volume 1
See this bookReady to take diagnostics into the refrigeration side — compressors, charge and system performance?
Stop Guessing: Advanced HVAC Airflow Diagnostics — Volume 2
See this bookWant to read wiring diagrams, trace 24V control circuits and use a meter with confidence?
Stop Guessing: HVAC Electrical Wiring Made Easy
See this bookWant one repeatable troubleshooting system you can apply to any service call?
The Complete HVAC Troubleshooting System
See this bookThe books complement each other: the fundamentals series builds the trade from zero, the airflow series goes from simple measurement to advanced static pressure and refrigerant-side diagnostics, and the electrical and troubleshooting titles work as standalone references. Every book stands on its own — start where you lose the most time in the field today.
Browse by series
Every English HVAC title belongs to a series. Each series page lists the books in reading order and the free field guides that support them.
Common questions about these HVAC books
- Which HVAC troubleshooting book should a technician start with?
- Start with The Complete HVAC Troubleshooting System if you already work in the field and want one repeatable diagnostic order covering airflow, electrical, refrigerant and compressor faults. Start with HVAC Fundamentals for Beginners Volume 1 if you are new to the trade and need the refrigeration cycle and electrical basics first.
- What is the difference between HVAC Airflow Made Simple and Advanced HVAC Airflow Diagnostics?
- Airflow Made Simple teaches how to measure static pressure and delivered airflow from the first reading. Advanced HVAC Airflow Diagnostics Volumes 1 and 2 go further into component pressure profiles, blower tables and refrigerant-side depth, for proving exactly where a restriction is.
- Are these HVAC books written for beginners or working technicians?
- Both. The Fundamentals series is written for apprentices and students learning the trade in order, and the diagnostics titles are written for working technicians who want measurement-based procedures instead of rules of thumb.
- Are the books available in Spanish?
- Several titles have Spanish editions written natively for Spanish-speaking technicians in the United States, listed on the Spanish HVAC collection page.