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Old 05-05-2018, 08:22 PM
kuene kuene is offline
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Join Date: Feb 2016
Location: North New Jersey
Posts: 390
About how much pressure should one use to test low and high sides respectively? I did a quick test today with 35 on low (it held for as long as I let it).

On the high side I went up to 100 but it always dropped down to about 35 after about 15 seconds. It would then sit at 35 for as long as I left it. I did have as many fittings sprayed with soapy solution but I couldnít see any obvious bubbles. I will be doing a more thorough soap and visual leak test next time.

PS even though Iím opening up the system to replace drier, exp, compressor - I still vacuumed the system after I was done pressure teasring in order to remove moisture.

Should I leave it at vacuum in the meantime - until I test or replace components next?
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