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Old 07-26-15, 12:34 PM   #1
NeilTheCop
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Join Date: Mar 2011
Location: Roswell NM
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Default AC leak

Need some advice.
I fitted a Goodman 2 ton AC unit last year. Filled the system with nitrogen before brazing with oxy-acetylene and a 15% silver filler rod. Pulled a vacuum with a good vacuum pump overnight, held at 5 Pascals for another 24 hours. Using subcooling (TVX fitted) I charged the system with R410A and it worked wonderfully.
Checking it out yesterday and I found compressor oil on the low pressure line where I brazed it to the condenser unit, so I have a refrigerant leak
Now the question.
Can I evacuate the system, fill it with nitrogen and simply re-braze the leaking fitting, or will the oil that will undoubtedly be present in the fitting be a problem requiring that I un-braze, solvent clean and re-braze?

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