Here, we will discuss the different contactor types you will run across in the field, along with how to test and replace these on air conditioners and heat pumps.

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

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

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

In this video, we will show industry-proven steps and tips on how to maintain electronic air cleaners.

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

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 ...

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

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

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

In this video, you will learn about emergency pan float switches and the EZ trap float switches and how to install them.

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

Installing glycol feeders are necessary in cold climates where the possibility of frozen boiler lines happens or could happen. In this instructional video, we will show you how to install these in the field.

In this video, you will learn how to install and set up an in-floor heating manifold for a radiant heating system connected to a boiler.

Are you ready to learn about aquastat controls? This video shows you how they work, and how they control a boiler system.

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

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

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

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

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

Maintaining burners on a gas furnace is a fundamental part of performing maintenance. In this video, we will show you the different types of burners, and how to maintain them in a gas furnace.

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

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

This video guides you through the various types of igniters. You will also learn how to perform general maintenance on them.

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

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

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

In this video, we will show you how to properly test the defrost operation on a heat pump system in order to verify proper operation.

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

Most compressors turned in for warranty are not even bad. This video shows you how to properly diagnose a compressor in the field to see if it does in fact require replacement.

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

In this video, we will demonstrate how to properly inspect, diagnose, and troubleshoot a PSC compressor on a system in the field. On average, most compressors that get turned in for warranty are not even bad. It is extremely important to diagnose compressors properly. In this video, we will show...