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HVAC Troubleshooting

HVAC Troubleshooting

When an air conditioning, heating or ventilation system goes on the fritz, your the homeowner's salvation. However, you may not have much information on what's wrong, so you will have be an HVAC detective. This playlist covers many common HVAC troubleshooting processes.

When your air conditioning, heating or ventilation systems go on the fritz, it can seem like you’ll have to put the handyman tools away and call in the professionals.

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HVAC Troubleshooting
  • Repairing a Leak on a Ductless System

    Performing leak repairs on ductless systems is a task any good HVAC technician needs to understand how to do. In this video, we will show you where the most common leaks are, how to repair the leak, evacuate the system, and how to properly charge a ductless system.

  • How to Add and Remove Refrigerant

    This video will show you the in's and out's of adding and removing refrigerant to a cooling system in the field. We will discuss heat pump charging in a separate video.

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

  • Testing and Installing a Transformer

    In this video, you will learn how to accurately test and replace a transformer on an operating HVAC system.

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

  • How to Measure Static Pressure

    Measuring static pressure is a vital task that must be performed in order to understand how the system is operating. It is also equally important to understand if there is a problem with the ductwork. This video will demonstrate how this is done.

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  • Replacing a Condenser Coil

    Often, a customer's condenser coil may be damaged by hail, ruined by corrosion, and cannot be combed out. Or, it could have a refrigerant leak, and be under warranty. In these cases, the coil itself on the outdoor unit needs to be replaced. This video will describe how this process is done.

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  • Measuring Resistance

    In this video, we will show you how to use a multimeter to check resistance on an electrical circuit in the field, which is a vital task for diagnosing equipment problems.

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

  • How to Join Black Pipe and Perform a Gas Leak Search

    Here, we will demonstrate how to join black iron gas pipe, and how to perform a gas leak search on a gas heating system in the field.

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

  • Troubleshooting Gas Piping

    In this instructional video, we will show you how to troubleshoot problems in the gas piping going to a gas furnace. Everything from inlet gas pressure, gas regulators, manifold pressure, and gas piping problems.

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

  • Installing a Compressor Terminal Repair Kit

    Many times you can have a compressor that has burned out terminals on it. This is usually caused by a loose connection. In this video, we will show you how to install a compressor terminal repair kit to get the system back up and running.

    Interested in learning more about NexTech Academy? Visit ...

  • Measuring Current

    Knowing how to check the current on system components is vital to an HVAC service technician. In this video, we will demonstrate how this is done.

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

  • Installing a Surge Protector

    We will introduce you to the surge protector, as well as an industry-proven method of how to install them on a system. Depending on your region, these can be a great add-on to any maintenance or service call.

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

  • Measuring Voltage

    It is imperative that you know how to safely and properly measure voltage on a system in the field. In this video, we will show you how to properly measure voltage on a piece of equipment.

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

  • Replacing an Expansion Tank

    In this video, we will show you how to properly replace a failed boiler expansion tank on a system in the field. This is an important task for any boiler technician in the field. We will also give tips on how to make this process easier.

    Interested in learning more about NexTech Academy? Visit h...

  • Troubleshooting and Replacing a Zone Valve

    In this video, we will show you in detail how to diagnose, troubleshoot, and replace zone valves on a boiler system in the field.

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

  • Zone Valve Operation and Testing

    You will be shown how to properly test a zone valve for operation on a hydronic heating system in the field. These should be inspected any time you are on a maintenance or service call.

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

  • Troubleshooting and Replacing an Aquastat

    In this video, we will show you how to properly diagnose and replace an aquastat for a boiler system.

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

  • Purging Air and Bleeding Terminals

    Air is the enemy in a boiler system and needs to be removed from the system for proper operation. In this video, you will learn how to correctly purge air from a hydronic heating system using standard hoses and boiler drains.

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

  • Troubleshooting and Replacing a Pressure Switch

    This video will demonstrate the proper way to diagnose and/or replace a pressure switch on a gas-burning appliance in the field.

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

  • Flame Sensor Operation and Maintenance

    In this video, you will learn how flame sensors operate, and how to maintain them in a gas heating system.

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

  • How To Inspect a Heat Exchanger

    This video showcases the proper way to inspect a primary and secondary heat exchanger on a condensing furnace in the field. This method can also be done on non-condensing furnaces as well. This is an important part of any heating system inspection and/or service calls as well.

    Interested in lear...

  • Troubleshooting Ignitors and Flame Sensors

    In this technical video, we will show you how to properly diagnose and troubleshoot common problems with igniters and flame sensors on gas-fired equipment.

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

  • 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 evaporator coils and outdoor condensing coils.

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

  • Testing and Replacing a Start Capacitor

    Start-assist kits (hard starts), assist compressors in starting and reduce the starting current of the compressor. This video breaks down the process of checking and replacing these on a system.

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

  • Applying Acid Neutralizer and Flush

    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.

    Interested in learning more about NexTech A...