Here, we will show you how to install and repair flexible ductwork on a system in the field.

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In this video, we will show you the basics of how to recover refrigerant from a system, pressure test it when a repair or installation is performed, and evacuate it to a proper vacuum.

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Heat exchanger inspection is a task that should be done on every gas-burning appliance to ensure the safety of not only the heat exchanger but the customer. In this video, we will show you the steps needed to perform an inspection on one.

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Cleaning blower assemblies is a task that many service and maintenance technicians will do often throughout their careers. In this video, best practices are shown of how to do this.

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There are a couple of different methods of running or replacing a thermostat wire in a customer's home. In this video, we will show you more than one way to get this job done.

Learn more about NexTech Academy's HVAC curriculum at https://www.nextechacademy.com

Testing ECM motors are quite different than testing a standard PSC motor. In this video, we will show you how to correctly test these motors along with tools that will aid in this diagnostic procedure.

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In this video, we will demonstrate how to safely and properly replace a gas valve on a gas heating system in the field, and which tools you will need to perform this task correctly.

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In this important video, we are going to show you the necessary steps of how to properly attach gauges and measure superheat and subcooling on a system in the field. This will allow you to know if a system in the field is undercharged, overcharged, or charged correctly.

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There are correct and incorrect methods of cutting, stripping, and crimping electrical wiring. In this video, we will demonstrate how to do this properly and safely.

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In this important video, we will show you the steps necessary to clean coils on an air conditioning system to keep it running in tip-top shape. It is extremely important that coils have the sufficient airflow they need for the system to operate properly.

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This video will show you how to properly neutralize the acid in a refrigeration system and flush the system with an r-11 flush kit. This procedure should be done any time a system has acid in it, or when a compressor has been replaced due to a burnout.

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In this video, we will demonstrate how to properly braze copper pipe and fittings which is much different than soldering. We will discuss purging with Nitrogen in detail in a separate video.

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In this video, we demonstrate different types of pliers and how to properly use them.

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