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In this course, you'll learn how to diagnose and repair 5 of the most common problems that occur with a toilet. Each lesson walks you through in a 3D simulation, with step by step guidance. The faults covered include a damaged wax ring, faulty fill...

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...

Knowledge of basic math skills is essential to all the trades. This course will introduce you to common fractions and how to read them. You'll also learn how to convert fractions, decimals and percent. In addition to that, you will be introduced...

Learn the mathematical relationship between volts, amps, and ohms using Ohm's Law. Then apply everything you've learned about combination circuits to diagnose what isn't working on a basic circuit in the Interplay Lab.

In this course, you will learn how to troubleshoot a major component of any HVAC system. There are a number of things that can go wrong on a motor. This course covers fuses, overloads, windings, capacitors, starting relays, and fan blades. It also...

In this course you’re going to learn about the small pipes that transfer water to and from plumbing fixtures. It begins with a couple lessons discussing tailpieces and traps, exploring the many materials, types and applications. These lessons will...

In this course on VRF System Overview, we will explore the key processes, the different types as well as the components of the Variable Refrigerant Flow system. Within this instructional video, you will be able to identify the three common types of...

In this course on VRF Outdoor Unit Maintenance, we will explore processes of the inspection and cleaning for a VRF Outdoor Unit during maintenance. With each scenario, you will be guided with simulation based steps to visually inspect and properly...

In this series of short simulations, you'll have the opportunity to perform various maintenance procedures on a walk-in freezer. These important procedures will ensure proper system performance as well as maintain energy efficiency. You'll gain...

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...