Topic: Tech Talk

Troubleshooting a no water heat or heated dry problem in a Whirlpool dishwasher

Posted on August 20, 2019 by - Tech Talk, Video Repair Tips

We troubleshot a weird no-heat complaint on a Whirlpool-built (Kenmore branded) dishwasher. This was Whirlpool's newer Global Wash System (GWS) platform dishwasher. Watch how we use the schematic to identify our Load of Interest and pick test points on the control board for measuring voltage, current, and resistance.

 

You know that complicated-looking cycle sequence chart on the techsheet you saw us using in the video? The one that no one uses because they don't understand it? Yeah, that one. We explained how to use it in an Appliantology Tips and Tricks webinar. It really is a powerful troubleshooting aid that lets you check all the functions and loads in the machine in just a few minutes. Premium tech members at Appliantology may watch this webinar recording here.

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Get World-Class Tech Help at Appliantology.org for FREE with your MST Enrollment

Posted on July 14, 2019 by - Academy Talk, Tech Talk

Team Samurai maintains and develops two different websites: Master Samurai Tech and Appliantology. Each site is designed to assist you in different stages of your appliance repair journey.

Master Samurai Tech is an online school that provides state-of-the-art appliance repair training, both for new techs and techs who have been in the business for decades.

Appliantology is a tech support community that provides peer-to-peer tech help, service manual downloads, and live training webinars to techs who are hard at work plying their trade. This is the daily information tool that helps to keep you at the top of your game after you've completed your training. Or, if you are already working in the trade, you can use it while you are also taking your MST courses.

While the sites' missions are distinct, they are interconnected in powerful ways. If you enroll with us at the Master Samurai Tech Academy, you can earn premium membership at Appliantology 100% for free.

These memberships are the Master Samurai Tech Student membership and the Master Samurai Tech Alumnus membership. Here's how they work:

When you enroll in any course at Master Samurai Tech, you immediately become eligible for the MST Student membership. That's 6 months of premium membership, giving you access to everything Appliantology has to offer with no extra charge.


How to sign up: your Appliantology 101 course will step you through the process.


Once that half a year is up, you can either transition to one of our other tech membership options, or, if you earn Certification in our Core course at Master Samurai Tech, you can upgrade to the prestigious MST Alumnus membership.

An MST Alumnus membership is just like a Student membership, empowering you with access to all of Appliantology -- but it can be renewed indefinitely for no charge. All you need to do to keep up an Alumnus membership is participate in the forums (more info on that here).

Enrollment at the Master Samurai Tech Academy doesn't just teach you invaluable repair skills; it also opens the door for access to all the great tech help at Appliantology forever.

Want to take advantage of all these powerful knowledge tools? Start with an enrollment at Master Samurai Tech today.

And remember, if you're shooting to earn the MST Alumnus membership, you need to get certified in the Core Appliance Repair Training course.

 

Expert troubleshooting mojo on a Maytag refrigerator evaporator fan problem

Posted on April 18, 2019 by - Tech Talk

This video demonstrates how the powerful skills and techniques that we teach at the Master Samurai Tech Academy will make your diagnostic work not only more accurate, but easier and faster.

We went to work on a Maytag jazz board style refrigerator with a warm fresh-food compartment. The evaporator fan seemed to be getting voltage but wasn't running. Change the fan? Not so fast.

Watch how we zeroed in on the faulty component with a few easy measurements from the control panel.

No tearing the freezer apart to reach the fan! (We are all about minimizing the hassle and liability of disassembling the appliance unless absolutely necessary.)

So much of what we teach in our online appliance repair training comes into play in this service call:

  • reading the schematic,
  • using EEPs (electrically equivalent points) to avoid unnecessary disassembly,
  • voltage vs. voltage drop,
  • proper meter settings, and more.

The most important and valuable work we do as appliance techs happens between our ears. Being able to read a schematic, devise smart electrical testing, and interpret the results is what leads to a slam-dunk diagnosis. This is how you avoid call-backs and improve profitability and customer satisfaction.

 
If you can't quite follow or understand the troubleshooting in the video, fear not: You can learn how to troubleshoot like this, too! We love teaching electric circuit troubleshooting to people who want to learn these skills. If you want to earn more money and have greater job satisfaction, enroll now in Core Appliance Repair Training.

 

How do I get Sealed System training?

Posted on February 17, 2019 by - Academy Talk, Tech Talk

Many techs do not do sealed system work because the large majority of refrigerator repairs that customers are willing to pay for do not involve the sealed system. Many one- or two-man shops don't find that it makes financial sense to have and maintain all the of equipment needed to do the work. Larger companies often have one or two techs who do sealed-system repairs, not their whole crew.

If your company does enough warranty work or there are a lot of high-end refrigerators in your market area, then you might want to have the ability to do sealed-system repairs, and are looking for training. Read on!

First, understand that actually doing sealed system repairs is a completely different skill from diagnosing a sealed system problem to begin with. Here’s the reality: it's relatively easy to learn how to do sealed system work; it’s much harder to train technicians how to troubleshoot and diagnose warm refrigerator problems correctly, quickly, and accurately.

In fact, I've found that many guys who do sealed system work don't actually understand how the sealed system works. I know, it sounds crazy! But that's the dirty little secret of doing sealed system repairs: you don't have to understand how the sealed system actually works in order to replace a compressor and recharge a system. You just need to follow a procedure, pay attention to details, know how to use some special equipment like scales and gauges, and acquire some degree of proficiency with brazing copper (and soon, Lokring).

If you are going to work on refrigerators in any way, then the first step is to take our our Refrigerator Repair Training Course. This will teach you how the sealed system works in conjunction with the controls to keep the compartments cold. You'll then be equipped to troubleshoot all fridge problems, and repair most of them.

Then, to add sealed-system work to your repertoire, you don't need a whole new course. Depending on where you live, you may be able to find a one-day workshop that steps you through the process and gives you some hands-on practice. Or, there may be a senior tech at your company who can show you the ropes. But there are also lots of free materials out there from manufacturers that you can read or watch, and then practice in your work shop. Get some old dehumidifiers or refrigerators to practice on. You'll destroy the first couple of them you work on but no big deal-- it's not a customer unit. After you get it right in your work shop, then you're ready to take your new skills into the real world.

Read, watch, learn, fix...

Technical Documents (You'll need a tech account at Appliantology.org to download):

Instructional Videos (from YouTube):

EPA Certification

This is the other question we get asked a lot - how to get the EPA Certification required to do sealed system work. EPA certification simply shows that you’ve passed a test regarding refrigerant handling and understand the regulations and certain safety procedures. It does not demonstrate your technical competence or ability to troubleshoot and repair sealed systems.

You can search online for a place that is authorized to offer the EPA “Section 608” test and certification. Here is one example.

Diagnosing two different no-start complaints in electric dryers

Posted on November 20, 2018 by - Academy Talk, Career Talk, Tech Talk

"My dryer won't start. I think it's the belt."

Many people mistakenly think that working on an electric dryer is easy Parts-changing-monkey work. Just swap out the part that isn't doing its thing, right?

Oh, no, my bruthahs and sistahs. Electric dryers can have interesting circuits that are fun to troubleshoot... if you know your stuff. If you can’t troubleshoot the electric circuits in these “low tech”, Old Skool appliances, how can you expect to troubleshoot the modern, computer-controlled appliances? We teach this in the Core course.

Both of the electric dryers in the video below wouldn't start. The causes were different, but in both cases we were able to find the exact failure by gazing upon the schematic diagrams and doing a few measurements from the control panel. Minimum disassembly, maximum bad-assery. This is the power of knowing basic electricity and circuits. Learn more, earn more!

 

 

This video demonstrates a powerful troubleshooting tool: Electrically Equivalent Points (EEPs). By identifying EEPs on the schematic, you can speed up your diagnosis and prevent unnecessary disassembly. Work smarter not harder!