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5 ac compressors

Discussion in 'Heat & AC' started by Brother Bill, Jun 8, 2021.

  1. Brother Bill

    Brother Bill Junior Member

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    Trying to sort out repeated AC compressor failures. On the 5th one. They dont last a day.

    system flushed.

    whats next?
     
  2. Brother Bill

    Brother Bill Junior Member

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    85 K20 Suburban 350
     
  3. AuroraGirl

    AuroraGirl Full Access Member

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    What Kind of ac compressor? Pancake? Sanden
    Maybe a aftermarket kit kind?
    Variounsoption show us your setup.

    any new components beside that?

    are you using oil And the proper amount of r134a
    Oil has to be compatible with the refrigerant and the compressor and the o rings.
    Is a vacuum being applied to dry and empty the system?
    Was it flushed?
     
  4. bucket

    bucket Super Moderator Staff Member

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    Are they locking up, making noise, or what?
     
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  5. AuroraGirl

    AuroraGirl Full Access Member

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    Just like dad he dropped a load and dashed to never be seen again


    Or in a less graphic manor, he went for cigarettes and still we wait


    Damn, I even replied 15 minutes after he posted
     
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  6. AKguy

    AKguy Supporting Member Supporting Member

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    He’s a busy guy.
     
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  7. Doppleganger

    Doppleganger Supporting Member Supporting Member

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    Sounds like a very contaminated system. I'd be flushing/replacing the condenser as well. Do those older systems have orifices? What kind of PAG oil and how much you putting in (and where)? Some goes in the compressor - some goes in the accumulator.

    I wouldn't have in my possession any compressor that wasn't made in: 1.USA, or 2.Japan.
     
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  8. AKguy

    AKguy Supporting Member Supporting Member

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    So, when a shop tells you they checked the system for contaminants and it was clean, how do they perform the function?
     
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  9. Bextreme04

    Bextreme04 Full Access Member

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    Generally they are running an automatic machine that will pull the refrigerant and oil out and run it through a filter. They draw it down, then open up lines and look. You can tell pretty easily when it has a contamination issue. You'll see sparkly stuff in a line or even worse black death when you crack a line. Black death means you need to replace everything... you'll never get it out of all the little spots and it will kill a new compressor fast.
     
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  10. SquareRoot

    SquareRoot Full Access Member

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    That answers a lot of questions right there.
     
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  11. AKguy

    AKguy Supporting Member Supporting Member

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    I have a hunch that the shop did not accurately assess the situation, has not since corrected all the issues and continues to burn through compressors.
     
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  12. bucket

    bucket Super Moderator Staff Member

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    Or it's a misdiagnosis and the compressors aren't actually failing. Kind of a vague question. Very vague, lol.
     
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  13. AKguy

    AKguy Supporting Member Supporting Member

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    Could be that, too!
     
  14. Doppleganger

    Doppleganger Supporting Member Supporting Member

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    I'd also be changing out the receiver/drier (accumulator) as well.

    Soooo.....looks like we wrapped this whole thing up. Another case solved.

    lol
     
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  15. AKguy

    AKguy Supporting Member Supporting Member

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    Sooooo glad there are only two days of the year where A/C would be nice here!
     

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