In this course, we learn the most common walk-in freezer system failures. We describe how to diagnose and fix them reliably and safely. We identify the symptoms of the most common failures, and we get hands-on experience diagnosing and repairing those problems using a 3D simulation program. We practice a repeatable process so that we can diagnose problems reliably. We recognize the common risks of walk-in freezer system repair so that we can fix problems safely.

This simulation-based course walks you through step by step of how to diagnose and repair 19 common washer problems that you may encounter on the job. You will work through various cases of malfunctioning washer. This is a fun, interactive and effective way to learn how to fix a washer.

This is an assessment simulation, where you'll use the steps and skills you've learned and practiced on the Interplay platform to determine the fault and fix each scenario. Use the bottom tool bar to navigate around the environment, inspect components, access tools, and view diagrams. This is designed to mimic a real-world scenario, so there's no step by step guide giving you instructions for how to troubleshoot the scenario.

Understanding how to properly maintain a water heater is essential for the best performance as well as prolonging its life. This course dives into the basic maintenance procedures you’ll need to know on the job, as well as what happens when they’re not done. It begins with exploring what happens when sediment collect and how to flush it out. It then concludes with a section on locating, removing and replacing anode rods. This course is a great tool to learn these essential skills.

This course covers the set up and application of various water treatment devices in addition to the operation of wells and what treatment methods you may need for them. First, you’ll learn about the preparation necessary to determine the kind of water treatment needed, including how to utilize a water quality test to make the best choice. After that we’ll look at how the water treatment equipment functions, how it affects water, and the reasons you may consider installing it. Finally, you’ll learn about wells and how they work, in addition to why certain water treatment methods are more applicable to them.

Are you new to the HVAC industry? This course is a great place to start. It covers general information on the industry, systems and components, and explains how an HVAC system heats and cools a house.

This Wire Types and Sizes course lays out everything you need to know about wires and conductors to be successful in the electrical industry. The different sizes and structures of wires as well as code designations will be covered. The course begins with an explanation of the American Wire Gauge system followed by a discussion of the different types of strands and how to understand code designations to identify the properties of the cable. The common cables encountered in the industry are described including NM-B and Metal-clad cable. By the end of this course you will have a much better understanding of the wires and cables you'll work with every day.