HVAC School

10/13/2026

Electrical wiring boards which students use to learn electrical circuits and how to correctly wire by reading a wiring diagram. These boards use real control components for a basic air-conditioner system with an air handler with back up electric strip heat.

10/09/2026

Here is a student working on one of our many hopscotch electrical diagnostic boards. The course starts with them wiring up the components to make the electrical system work properly; this is the step before the actual bugged furnaces, where students trace out the flow of electricity on a faulted board. It is the same diagram that they started with, but now, instead of placing wires in the circuit, they are troubleshooting it.

10/07/2026

Students in our ACHP-106 course disassembling a commercial Hitachi Screw compressor as part of our compressor matrix. This gives students an insight to the many different compressor designs and a hands on understanding of compressor failures and how to help prevent them.

07/28/2026

Low voltage faults and electrical diagnostic are the starting point of at least 75% of problem calls in my experience. Unless the cause of a problem is obvious your usually going to have to start off investigating with your meter.
Here a student is checking for voltage through a pressure switch to help narrow down his diagnostic. This is from the GS-102 course from last year. Next class dates and enrollment on our website www.hvacschool.com

education

07/23/2026

The fastest way to understand electrical circuits and troubleshooting isn't from a PowerPoint lecture or from reading a book its by grabbing some wires and parts and learning hands on.

This photo is from our GS-102 class last year of the students starting with wiring boards prior to learning hopscotch troubleshooting on gas furnaces.
Even though the course is named GS-102 Gas furnace Service, its not just for the HVAC trade since its a very practical hands on course on electrical troubleshooting and low voltage diagnostic.
We get all different trades taking this class to sharpen their diagnostic skills. Including electricians, building engineers, Data and security, for example most of the people in this picture are boiler technicians

Hands-on HVAC training near Seattle. Real shop equipment, real instructors, job-ready skills.

07/15/2026

Its been a minute since I've posted on the school's social media. Since we have a small staff at the HVAC School sometimes the social media posts get left on the back burner when we get busy.
Here are some students from the previous ACHP-106 class getting ready to take measurements and run service calls on a trainer that was recently charged by their classmates.

04/21/2025

Learning how to braze copper refrigerant pipes can be an intimidating task to learn in the field. As part of our ACHP-106/RS-103 classes we have brazing benches set up so students can learn how to confidently and comfortably braze. This way they can make all the mistakes in class and not out in the field.

04/14/2025

Students in the ACHP-106 class learning about electrical wiring and diagrams by practicing wiring real wires to real hvac components on our electrical boards.

04/10/2025

Students taking voltage measurements on a AC system as part of running a service call. We build our trainers out of up-cycled equipment so students can get experience working on real units they’ll see in the field.

04/07/2025

Pics from ACHP-106 of students tearing down compressors. A very fun way to learn about compressor design and operation and the effects of improper sizing and servicing leading to failures.