Cooling Systems

Cooling Systems

Air conditioners have three important parts that include a compressor, a condenser, and an evaporator. You'll learn basic repair and replacement tasks for these parts as we'll also cover ductless systems in this playlist.

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

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Cooling Systems
  • How to Braze a System with Dry Nitrogen

    Keeping the system clean is of utmost importance. This video will show you the tools you need and the process involved in purging a system with dry nitrogen while brazing in a system.

  • Airflow Problems at Coils

    We will show you the importance of airflow on the coils and what types of problems are associated with airflow. We will look at indoor and outdoor coils.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Replacing a Condenser Coil

    Learn the correct way to replace a condenser coil on a system.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Checking Heat Pump Refrigerant Charge in Heating Mode

    Learn how to correctly diagnose the charge on a heat pump system in the heating mode of operation.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Replacing a Reversing Valve

    We will show you how to replace a reversing valve on a heat pump system and share tips on how to easily perform this difficult task.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Metering Device Testing and Replacement

    Learn the steps needed to correctly test and replace metering devices on air conditioning systems in the field.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Recognizing Liquid Line Restriction and Meter Device Problems

    In this video, we will show you how to recognize liquid line restrictions, along with how to find a problem with a metering device.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • How to Clean Coils

    In this important video, we will show you the steps necessary to clean coils on an air conditioning system.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • How to Test Defrost Operation

    Learn how to properly test the defrost operation on a heat pump in order to verify proper operation.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • How to Add and Remove Refrigerant

    In this video we will show you the correct method for adding and removing refrigerant from a system.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Over & Undercharged Heat Pump Systems

    Learn what to look for to understand if a heat pump system is over or undercharged.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Repairing a Liquid Line Restriction and Restricted Filter Drier

    Learn the industry best practices of how to repair a liquid line restriction along with knowing how to recognize a restricted filter-drier.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Recovery Pressure Testing and Evacuation

    We will show you how to properly recover, pressure test and evacuate a refrigerant system.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Installing a Compressor Terminal Repair Kit

    We show you how to perform a simple repair on a compressor; installing a new terminal kit.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Contactor Types, Testing and Replacement

    Learn about the different types of contactors on the market for residential home service, and how to test and replace them.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Troubleshooting Time and Temperature Defrost Boards

    Performing troubleshooting tests on a frozen system will help you diagnose the problem.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Troubleshooting Demand Defrost Boards

    Learn how to diagnose demand defrost boards on a heat pump.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Troubleshooting a PSC Compressor

    Learn how to properly troubleshoot a PSC compressor while in the field.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Troubleshooting A Compressor

    This video walks you through the steps of how to correctly troubleshoot a compressor in the field.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Troubleshooting and Replacing a Condensing Fan Motor

    For this video, we will show you the best practices of how to replace a condenser fan motor on a unit in the field.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Replacing a Failed Compressor

    Learn what exactly needs to be done to properly replace a failed compressor in the field.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Replacing a Service Valve

    After watching this you can successfully replace a faulty or leaking service valve on an air conditioner or heat pump.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • Ductless System Operation and Maintenance

    Curious about how the ductless system works? We'll show you.

    Interested in learning more about NexTech Academy? Visit https://www.nextechacademy.com

  • How to Repair a Damaged Coil

    Repairing a coil in lieu of replacing a coil is a task that all HVAC technicians need to do at some point in their career. Here, we will show you an example of repairing a condensing coil that had a screw drilled into it by accident.