Low Voltage Wiring/Troubleshooting

Presented by Michael Whited – HVAC Technical Specialist

Join Michael Whited for a hands-on training session focused on one of the most critical—and commonly misunderstood—areas in HVAC: low voltage wiring. Perfect for installers, service techs, and anyone looking to build stronger electrical fundamentals, this class walks you through wiring best practices, diagnostics, and real-world troubleshooting.

From thermostat circuits and transformers to relays, zoning panels, and control boards, you'll gain confidence working with low voltage systems safely and effectively.

Whether you're new to the trade or brushing up on the fundamentals, this class will make sure you’re wired for success.

1. Wiring System Basics – Understand the role and layout of low voltage systems in HVAC applications, including color coding and signal flow.
2. Proper Wiring Techniques – Learn how to strip, connect, and route wiring for clean, secure, and code-compliant installs.
3. Control Circuit Troubleshooting – Identify and isolate issues with thermostats, transformers, relays, and control boards.
4. Using Meters Safely & Effectively – Practice using multimeters and voltage testers to check continuity, voltage, and resistance.
5. Real-World Scenarios – Work through common service call issues and wiring mistakes seen in the field.

Know what’s Happening Next — before everyone else does.

Get App

Host or Publisher Johnstone Supply of SE WI