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This course is designed to cover the top 17 changes published in the latest edition of the NEC. Keep in mind, not all states immediately adopt the latest edition of the NEC. Always check with your local authorities which will have the jurisdiction to...

In this course, we'll cover everything you need to know to identify and fix faulty components in a PTAC, including the control board, compressor, heater, transformer, and more. Whether you're dealing with a PTAC that won't turn on, a unit that's not...

This course will introduce learners to basic power tools required for residential and commercial plumbing work across various tasks. We will orient you to their basic characteristics, when they are used, and how they are utilized on the job site. We...

In this course, we learn how to diagnose and repair common faults in the rack and cases of a parallel rack refrigeration system. We learn the symptoms of the most common failures. We get hands-on experience diagnosing and repairing those problems...

Commercial kitchens rely on upblast exhaust fans to remove grease and smoke from the building. Exhaust systems reduce the risk of fire and improve air quality in the building. To follow local regulations businesses must schedule routine maintenance...

A well-working exhaust fan is essential to the functioning of the entire CHVAC system. Fans are one of the most reliable components of a CHVAC system. Still it's important to have an ongoing schedule of preventive maintenance for exhaust fans. In...

In this course on Tankless Water Heater Troubleshooting we will explore the troubleshooting tasks of a tankless water heater unit. With each scenario you will be guided with simulation based steps to check for key signs of different faults through...

In this course on Manual Flushometer Troubleshooting we will explore the troubleshooting tasks of diaphragm-based manual flushometers. With each scenario you will be guided with simulation based steps to check for key signs of abnormal flushing as...

This course will introduce learners to basic hand tools required for residential and commercial plumbing work across various tasks. We will orient you to their basic characteristics when they are used and how they are utilized on the job site. We...

By the end of this course learners will understand the fundamental concepts of backflow and specific hazards related to it. They'll learn about the differences between the two causes of reverse flow, backpressure and backsiphonage–and be introduced...