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Thread: Aaon coil leaks

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  1. #1
    Join Date
    Nov 2005
    Posts
    1,350

    Aaon coil leaks

    Has anybody else had a problem with condenser coil leaks on these Aaon units? I have an account with 3 and 2 have leaks, sad part is they are 3 years old. They are at the tube sheet, man what a pain in the rear, they appear to be cracks.
    I STARTED WITH NOTHING, AND I STILL HAVE MOST OF IT!

  2. #2
    Join Date
    Aug 2009
    Location
    Seattle Area
    Posts
    58
    We had 2 this summer. Both were 2 years old and at the sheet.

  3. #3
    Join Date
    Jan 2003
    Location
    Kansas City
    Posts
    1,484
    Also had 2 of them this year---both units under 10 tons---both leaks at the tube sheet---No warranty on one because Aaon starts their warranty on the ship date. Unit installed 10 months prior, but unit shipped 8 months prior to that ......Aaon.......

  4. #4
    Join Date
    Apr 2007
    Location
    Pa
    Posts
    758
    can't say I had any leaks but the problem I have been having for the past 2 years on equipment only 1-2 years old ranging in sizes 7 ton to 50 ton is RUBBING WIRES!! For what you spend on these things the least they could do is provide some slack on the wire harnesses......Do you know how long it takes to find a short in the control wires on a 50 ton unit fully loaded with all the bells and whistles?? Oh while in the freezing rain? I don't understand how it leaves the factory with the wires so tight.

  5. #5
    Recently did start up on 70 ton Aaon that had bad pipe (> 10 pin holes in 1 foot length of pipe). All of the service fitting caps were loose or missing. Garbage!

  6. #6
    Join Date
    Jun 2000
    Location
    B.C. Canada
    Posts
    147
    Started 4 30 Ton units this summer, two had came from the factory with leaks in the coils. Both tube sheet one evaporator and one condenser, real pain in the butt to find very windy which made it near impossible. They were not very big leaks still equally hard to find, to fix was also difficult I am sure but I didn't get the chance. Another outfit made the repairs after I did all the hard work oh well.

  7. #7
    Join Date
    Apr 2009
    Location
    San Diego, CA
    Posts
    38

    Angry

    I have 4units with leaks at tube sheet. All 3 to 4 years old. They suck A$$.

  8. #8
    Join Date
    Jan 2007
    Posts
    89
    AAON has terrible quality control.Over the years I've seen many brand new units show up with no gas in them. But all the inspection tags are filled out as passing.One of the best ones was none of the tubes at the distributer were brazed at the factory,but is passed the quality control run test.

  9. #9
    Join Date
    Apr 2007
    Location
    Pa
    Posts
    758
    So what is so great about AAON? Apples for apples what manufacture would you recommend?

  10. #10
    Join Date
    Jan 2007
    Posts
    89
    Was that question for me? If so you apparantly misunderstood my post. I was only refering to AAON crap.I myself prefer trane or Carrier,

  11. #11
    Join Date
    May 2004
    Location
    new jersey
    Posts
    338
    Quote Originally Posted by Jshanl View Post
    AAON has terrible quality control.Over the years I've seen many brand new units show up with no gas in them. But all the inspection tags are filled out as passing.One of the best ones was none of the tubes at the distributer were brazed at the factory,but is passed the quality control run test.
    just did a startup on a 10 ton inspection tags filled out, i go to start it and find bad mod gas board and gas valve.now how was this test ran.

  12. #12
    Join Date
    Jul 2008
    Posts
    440

    DITTO ON THE AAONS!

    I thought it was just me and my experience with Aaon. I service/PM a large casino with 17 Aaons all within 3 years old. So far in the year and a half weve been there, there has been 4 leaks all in the condenser bend sleeves. Real pain. One repair is still pending as its in the very bottom pass and there is litterally no way to get at it without taking the whole exhaust and econ hoods off or cut/grind that panel down the middle so that one could get that side off to allow access which would look terrible. Im kind of a rookie yet. Have Aaons always been this way? I know of some buildings that we take care of that have Aaons that are quite old and still kicking. It seems that this bend sleeve leak problem seems to be quite common on fairly newer units 3-4 years old. Interesting.

  13. #13
    Join Date
    Mar 2001
    Location
    Seattle
    Posts
    384
    I fired off a 10 ton about 2 years ago. The condenser fan bracket was broken probably from the trucker going off jumps I guess, and the wires for the powered exhaust were pinched and hanging outside the cabnet. They were totally obvious. Then within a year the condenser had a leak.

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