Jump to content

Learn appliance repair at the Samurai Tech Academy.  Learn more.  Earn more.

Parts Search
Site Search

FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact

Welcome to Appliantology.org, the Web's Premiere Appliance Repair Resource!

The world-famous Samurai Appliance Repair Forums

To get started, click here.

Already a member of Appliantology? Just sign in with your username and password in the upper right-hand corner of the screen.



Member Since 13 Aug 2013
Offline Last Active Aug 27 2013 03:31 PM

#266128 sub-zero vacuum condenser light, compressor always on

Posted by jcharlie on 27 August 2013 - 03:30 PM

Just thought I'd close out this thread with the results.  I got a new (aluminum) evaporator (the original was copper), had it installed, and the system swept, vacuumed, and recharged. Everything is working great. The compressor is finally cycling on/off after a fairly long initial cooling cycle. No more vacuum condenser light.


I have a couple more questions if anyone is inclined to reply--just for my own edification.


On this 642 the tech used between 8 to 8.5 oz of R134a. The history of the unit is unknown due to a lack of s/n, so the tech had to estimate the proper charge amount based off a standard table. How sensitive is the refrigerator to getting the optimal amount of  refrigerant? Is it really to the ounce? Does an overcharge cause the compressor to work harder, the current draw on the compressor was ~1.3A, and the tech thought he'd bleed out a little refrigerant because he wanted to see it closer to 1A.


Last question, is there a typical cooling/defrost cycle on the S/Z 642, or is it all based on sensors? How long should I expect each cycle to be, or can that question even be answered?


Thank you all for your input. It was extremelly helpful. Now how do I get a beer to you?



FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact

Use the Appliantology Parts Finder to Get What You Need!
Enter a model number, part number, type of appliance, brand, or even a part description.
365-day return policy on all parts purchased here, even electrical parts that have been installed!

Your Sometimes-Lucid Host:
Samurai Appliance Repair Man
"If I can't help you fix your appliance and make you 100% satisfied, I will come to your home and slice open my belly,
spilling my steaming entrails onto your floor."

The Appliance Guru | Master Samurai Tech

Real Time Analytics