Troubleshooting Advanced Systems

This article was written by Senior Refrigeration Tech Jeremy Smith. Before we get to it I want to remind you that ALL of the tech tips are available in alphabetical order HERE – it’s a great link to share with other techs, HVAC business owners, Trade school students etc… you can feel free to share these anywhere.


Alright, maybe “advanced” isn’t the right thing to call this little tidbit, maybe it should be “troubleshooting and information sharing in the digital age….”

Microprocessor controls, PCBS, PLCs, call then what you will, electronic circuit boards have become an integral part of the HVAC/R world. From a small heat pump defrost board to an
advanced building automation system, these little pieces of equipment seem to be the bane of a techs existence.

One very important thing to remember when working on a system with one of these items installed is that each one has a specific troubleshooting procedure and its own sequence of
operations.

So, how is a tech supposed to remember all of this stuff?

Pro Tip. You DON’T.

Chances are good that you’re reading this on a smartphone or a tablet. With that and a couple of free apps, you can build a library of tech manuals, reference documents and other
information to allow you to be better at diagnosing problems on specific equipment.

So, how do we build this? Well, you can go Old School and print out all of the manuals and store them in your service truck, or we can keep up with the times and go HVAC/R School and
put it in “The Cloud”.

Everybody has a Gmail account. Maybe it’s your primary email, maybe it’s the one you give people that you don’t really like so you never hear from them again. Well, with every Gmail
account comes 15GB of free online storage through an app called Google Drive. Grab the Google Drive app from the app store or play store and, if your Gmail is logged in to
that phone, the drive app is already logged in to access your cloud storage. Now, start to “build” your reference library by uploading those PDF files to the drive.
Sometimes this is easier to do at a PC, but it can be done from a phone or tablet as well, it’s just a bit more tedious, at least for me. Then, the next time you’re on a job and have to search and find a manual for a piece of equipment you’re working on, save it on your Google Drive, too. Before long, you’ll have a very
nice library to draw from.

If you’re feeling particularly generous, within Google Drive, you can share that information with coworkers and other techs. You can either allow them to contribute to the library or just to view
it.

You know what’s better than having a good memory? having good resources. Oh and reading… you pretty much can’t be a good tech tech nowadays if you never read.

Sorry…

— Jeremy

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