Question about Sub-Zero 632 / S

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SubZero 532 have a subzero 532 that has developer a very small hole in the capillary line for the freezer. This happened due to vibration against a adjoining line. Can I braise this line and recharge or will I need to replace the whole capillary? The line is about 3/16 OD I do have acetylene and silver rods. Thanks Cliff

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  • tecocliff Dec 27, 2007

    Thanks for the information. I should have been more clear. I am not going to be charging the system I just want to make the repair then have it charged for me.

    The compressor did not run long after the leak due to the fact the freezer was not cold enough. So I am willing to take a chance on charging it. Its the brazing of the capillary line that I am the most interested in. What is the best size copper line to use to create a sleeve to slip the two ends of the 3/16" capillary line into. Any tips on the actual brazing would be a help.



  • tecocliff Dec 28, 2007

    Do you have any tips on the best way to flare the 3/16 tubing?

    I do not have a flare tool that small.




2 Answers

In refer. repair we usually us silver solder as there is a tremendous amount of pressure that builds up in your sealed system. You would use the same size copper tubing, 3/16", and flare the ends to repair. If you have experience and can get ahold of some silver solder that would be okay. (Silver solder is not the color but the type of solder to use.)

Posted on Dec 28, 2007

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It's a bit more complicated than you may think. It's not good to braise a hole you need to take a 6 inch piece and splice it into the area of the hole. As for recharging if you have never done it don't attempt it. Since there was a hole you may have gotten contaminants into the line and contaminated or burnt the system. For one thing you need to be certified as it is against the law to open up a system and discharge it into the air. The old freon is poisoness to small animals and if you don't have the right equipment you can't do it anyhow. Also depending on how old the system it may take R12 or R134. It's not just a matter of pouring new freon into the system. It has to be evacuated and the old freon captured then it has to be measured then with the right equipment pushed back into the system. Like I said if you have never done it don't even try it you could make things worse.

Posted on Dec 27, 2007

  • Kelly Sullivan Dec 29, 2007

    You can get ahold of a flaring tool at Harbor Freight or any other appliance parts house. You will need it for it to fit correctly.



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