Seminar Overview

Available in both virtual and in-person, instructor-led formats, this two-day Hands-On Air Conditioning Maintenance and Troubleshooting course is designed for HVAC technicians looking to gain an in-depth hands-on understanding of how to find and repair system problems safely.  It is recommended that this course be taken only after completion of the Understanding Air Conditioning & Refrigeration course. 

Students in this course will be able to charge, evacuate, and troubleshoot an actual AC system as they would in the field. Proper maintenance and troubleshooting scenarios of multiple systems will be discussed to give the attendee the best understanding possible. Learning to use the proper tools is very important and service equipment such as vacuum pumps, manifold gauges, charging scales, multimeters, and more will be used in the hands-on applications. Learn from the experts on how to troubleshoot and repair an air conditioning system in the fastest and most efficient way possible.

This 2-day seminar is just $1,195.

Download the Hands-On Air Conditioning Maintenance and Troubleshooting Brochure

What is Virtual Instructor-led Training (VILT)?

Virtual Instructor-Led Training (VILT) is a live audio and video classroom experience over the internet with 100% interaction with the instructor, from the comfort of your own home or workplace. All you need is an internet connection, a microphone, and a webcam, and you can join the session from anywhere. With full audio and video capabilities, you are equipped with the tools you need for maximum learning. Visit our Virtual Instructor-Led Training page to learn more about the benefits of VILT.

Find an upcoming virtual class

Day One - Day One - Discussion Topics

Refrigeration Cycle

  • Typical System
  • Main Components
  • Refrigerant in Action

Safety Concerns

  • Proper PPE
  • Proper Handling of Refrigerants
  • Electrical Safety
  • EPA

Tools and Equipment

  • Manifold Gauges
  • Vacuum Pump
  • Refrigerant Scales
  • Refrigerant Recovery Machine
  • Multimeter
  • Clamp-on Amp Meter

System Component Maintenance

  • Evaporator
  • Condenser
  • Compressor
  • Metering Device

Electrical Troubleshooting

  • Voltage Checks
  • Current Checks
  • Checking and Replacing Fuses
  • Troubleshooting Compressor
  • Proper Motor Winding Checks

Day Two - Day Two – Discussion Topics


  • Types
  • Applications
  • Pressures
  • Replacement Refrigerants

Hands-on Refrigerant System Applications

  • Proper Use of Manifold Gauges
  • Evacuation of the System
  • “Pump Down”
  • Nitrogen Pressure Testing
  • Refrigerant Recovery
  • Leak Detection
  • Proper Charging of the System

Hands-on Troubleshooting the System

  • Measuring Superheat
  • Measuring Sub-cooling
  • Effects of Overcharge
  • Effects of Undercharge
  • Importance of Proper Airflow
  • Troubleshooting Scenarios
  • Electrical Troubleshooting

Planned Maintenance Schedule

  • What to Check
  • How Often


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