FREE SKILLS COURSE

Electrical Fundamentals for HVAC

Master HVAC electrical work from theory to troubleshooting. Circuits, motors, wiring diagrams, control systems, transformers, and systematic fault diagnosis.

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Practice Exams

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Course Modules

Click any module to start learning. Begin with the Overview, then work through each module in order.

OVERVIEW

Course Overview

What this course covers, who it's for, how to use it alongside other certifications.

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MODULE 1

Electrical Theory

Voltage, current, resistance, power. Ohm's Law, Watt's Law, series/parallel circuits.

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MODULE 2

Electrical Safety & LOTO

Shock hazards, arc flash, lockout/tagout procedures, PPE for electrical work.

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MODULE 3

Reading Wiring Diagrams

Ladder diagrams, schematic symbols, tracing control circuits, understanding sequence of operation.

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MODULE 4

Motors & Starters

Single-phase, three-phase, ECM motors, contactors, overloads, capacitors, starting methods.

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MODULE 5

Control Circuits

24V systems, thermostat wiring, staging, sequencers, safety switches, relays.

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MODULE 6

Transformers

Step-up vs step-down, VA ratings, primary/secondary, testing, common failures.

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MODULE 7

Troubleshooting Electrical Faults

Systematic diagnosis, voltmeter/ammeter/ohmmeter use, load testing, half-split method.

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Practice Exams

Test your knowledge after completing the modules. Instant feedback on every question.

Full 50-Question Exam

50 questions - instant feedback

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25-Question Quick Quiz

25 questions - instant feedback

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Electrical Fundamentals for HVAC