Sep 04, 2025  
Course/Program Inventory 
    
Course/Program Inventory

HAC 3050 - HVAC Troubleshooting



Clock Hours: 168

Delivery Mode
on-ground

Prerequisites: Maintenance Assistant   

Industry Certifications ESCO Employment Ready: System Diagnostics and Troubleshooting Procedures  

Course Description:
This course provides students with instruction on the troubleshooting of HVAC equipment.  

Student Learning Outcomes:
Safety  

  1. Demonstrate an understanding of HVAC related safety issues  

Electrical Troubleshooting  

  1. Explain how to use a schematic to troubleshoot HVAC equipment  

  1. Explain how to use a multi-meter to troubleshoot HVAC equipment  

  1. Explain how to use a multi-meter to test electrical or electro-mechanical components.  

Mechanical Troubleshooting  

  1. Describe how to troubleshoot compressor problems  

  1. Describe how the condensate drain affects the system  

  1. Describe how to clean coils and troubleshoot problems.  

Airflow Troubleshooting  

  1. Explain the need to change filters  

  1. Explain how to check system CFM and adjust airflow  

  1. Describe how to locate and correct airflow problems  

  1. Explain checking wet-bulb and dry-bulb temperature when servicing equipment  

  1. Explain how to plot air properties using a psychometric chart  

  1. Describe the affect a dirty coil would have on equipment  

Refrigerant Troubleshooting  

  1. Explain superheat / sub-cooling  

  1. Describe methods used to charge a HVAC systems  

  1. Describe steps used to determine if the system charge is low  

  1. Describe system problems that may appear to be a refrigerant charge problem