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Thread: A/C leak detection

  1. #1
    President Member
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    A/C leak detection

    If one was looking to find the leak in an a/c system with R12 would you use a "sniffer" or use the dye and black light??

    Thanks for your opinions.

  2. #2
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    There is usually evidence of dust around a fitting, where the refrigerant escapes small particles of dust will accumulate, not very technical but is a good indicator.

  3. #3
    President Member TWChamp's Avatar
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    I always used my leak detector torch. It's really sensitive, but be sure you don't breath the air around the flame, as it's phosgene gas. Been a lot of years since I used it.

  4. #4
    President Member Rerun's Avatar
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    I have had more success with the dye than a sniffer, particularly for slow leaks.
    Jim Bradley
    Palmyra, VA
    '78 Avanti II

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