Episode 344. Basics of CO2 Controls - Service Calls & Troubleshooting Rack Controllers with Kevin Mullis (Part 4 of 4)

The Refrigeration Mentor Podcast · Oct 13, 2025 · 1h 2m · transcript

Join the Refrigeration Mentor Hub here

Learn more about Refrigeration Mentor Customized Technical Training Programs at www.refrigerationmentor.com/courses

This episode is the final in our 4-part "Basics of CO2 Controls" series with Kevin Mullis, Head of Product Engineering at Clade Engineering Systems (links to parts 1-3 below). In this one, we cover service calls and troubleshooting for CO2 rack controllers. This episode is packed with practical techniques and lessons, including dealing with overcharged and undercharged systems, interpreting critical data points from controllers, recognizing…