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Sunchaser_59's avatar
Sunchaser_59
Explorer
Jul 22, 2018

Workhorse a/c condenser

Hello everyone.
I am a first time RV owner and have learned a great deal so far but am looking to you veterans for help. My wife and I recently purchased a 2004 Itaska Suncruiser on a Workhorse Chasis. Everything works like new except the chassis a/c. When charged it immediatly cools great but leaks down within minutes. After hoping I would find an o-ring leak or a hose, I found the worst, condenser was leaking badly at the lower drivers side. This model also incorporates the engine oil cooler so it is ultra-expensive and I am even having a hard time finding one. I am a pretty good wrench and what I intend to do is install a separate condenser independent of the original. I realize this will likely involve some hose modifications but it would certainly be less than $1,500. Anybody know of a better idea or have any dealings with this? Thanks !

9 Replies

  • After giving it a closer look it definitely is a separate condenser than the engine oil cooler. It mates directly against the engine oil cooler. The Allison tranny cooler is in the radiator. The only problem is that I must remove the entire oil cooler and condenser. It has 8 rivets attaching the bottom to the oil cooler which are inaccessible to drill out. Top just has 4 bolts. Oh well, I know what is before me so I will get going. Thank you guys for all your help, you were spot on,
  • RLS7201 wrote:
    rgatijnet1 wrote:
    You need to get under your coach and look again. Your OIL cooling lines AND your transmission cooling lines all go through the radiator, NOT the AC condenser, which is out front.
    Any vehicle AC shop will be able to order a replacement condenser and install it in to your coach. There are many standard size condenser assemblies out there that will work.


    See the oil cooler lines on the bottom of the condenser?
    It's a P32 thing.



    Richard

    Thanks, I stand corrected. On the W chassis, they all run through the radiator. Perhaps he could use a standard condenser replacement coil and ADD a separate oil cooler.
  • Sunchaser 59,

    Maybe it's possible to repair the condenser with some silver solder?
    Talk to a home A/C installer about repair. They silver solder all the time.

    Richard
  • rgatijnet1 wrote:
    You need to get under your coach and look again. Your OIL cooling lines AND your transmission cooling lines all go through the radiator, NOT the AC condenser, which is out front.
    Any vehicle AC shop will be able to order a replacement condenser and install it in to your coach. There are many standard size condenser assemblies out there that will work.


    See the oil cooler lines on the bottom of the condenser?
    It's a P32 thing.



    Richard
  • If the condenser is leaking then it has to be replaced. That should have been found when they vacuum the system down, not after they put the refrigerant in.

    The parts on a RV system for the Ac are not from the same vendors as cars

    Look on the parts and see which vendor they used. Then all you have to do it replace not re-route . This place does many so it might be who you have. Maybe Doug might ring in and he will know for sure. If it is that old you might need to replace the flex hoses with the newer type. But you need to pull a good vacuum to check for leaks and really look over the system for other leaks before you even start.

    https://www.comfortairgr.com/product-category/evans-tempcon-motorome-rv-parts/
  • You need to get under your coach and look again. Your OIL cooling lines AND your transmission cooling lines all go through the radiator, NOT the AC condenser, which is out front.
    Any vehicle AC shop will be able to order a replacement condenser and install it in to your coach. There are many standard size condenser assemblies out there that will work.