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  • Upcoming Events

    • 15 February 2025 03:00 PM Until 04:00 PM
      1  
      Returning guest presenter Aaron Wilson is back for another exciting discussion. This time, we'll be talking about...
      The Science of CYA: How to Keep the Customer Safe, Document Your Work, and Not Get Sued
      We take on a lot of liability as appliance repair techs, and that can get us into sticky situations whether we've done anything wrong or not. Aaron will be teaching us all about how to navigate this side of the trade.
      We'll start by going over a tragic, real-world case study where a sloppy installation had lethal results, analyzing exactly how the installer's negligence caused this. From there, our scope will expand to what kind of safety precautions we should implement in our own work, both for the customer's sake and for our own.
      But even if you do everything perfectly, there's still the famous "technician witch hunt." Well, we'll also talk about how to deal with that by thoroughly documenting your work and putting yourself beyond legal reproach.
      A little about our guest, Aaron Wilson:
      Aaron has been in the appliance repair trade for about 15 years, starting out by doing installations before moving on to bigger and better things. He worked for C&W Services as a Sub-Zero authorized servicer for a time and thereafter joined Mr. Appliance of Highland Park in the Dallas area, where he worked for years as the lead technician and field service manager. These days, he's making sure that all the appliances of everyone's favorite fried chicken place are in tip-top shape as the Quality and Performance Consultant for the southwest branch of Chick-fil-A. In addition, he has taught many classes on refrigeration repair and advanced diagnostics, during which time he also developed training material for the soft skills side of things, which he is delighted to share with you. On top of all that he's a certified graduate of the Master Samurai Tech Academy, so he knows his stuff!
      Also, follow this Calendar Event so you'll get notified of new posts here. Look for the "Follow" button either at the top of the topic on desktop or below the topic on mobile.
      Who: This workshop is available to everybody, including you! You don't have to be a member of Appliantology to join the fun.
      When: Saturday, February 15 @10:00 AM Eastern Time.
      Where: Online via Zoom
      How:
      Click here to register. If you're interested, register now. Arrive a couple minutes early to make sure your connection is working. Set a reminder for yourself for this workshop so you don’t miss it. 

Sub-Zero 590 Refrigerator Section 45-50 degrees at 10. Cold Control?


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jacob_coulter
Posted

I have a Sub-Zero 590 with R-134.  Of course during this time when I can't get a repair tech out, it needs service.  It probably averages around 45 degrees in the middle, around 50 on top.

I almost think the problem is the compressor doesn't stay on long enough, it's like it "thinks" it's cold enough and stops.

 About 2 years ago, I got a new cold control and it seemed to fix all of my problems. Been running great.  Not sure if that's happening now, the diagnosis I've seen is usually the cold control just fails, it doesn't fail intermittently like this.

 

Any way to test it while it's in the refrigerator?  If I turn the control to 0 and then back up to 10, the compressor still stays off, it's like it needs 20 minutes or so to come back on every cycle.  I would think a properly working cold control would make the fridge get to the set temp before shutting off?

 

Something else like a compressor relay?  I also have low side and high side gauges to test refrigerant pressure, have some experience in auto ac systems.

 

Any help would be appreciated, I'm sort of stuck in a quarantined house with a bad refrigerator.

 

 

 

 

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Posted

Any luck with this one?

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