TriPac APU Alarm Codes

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Manny129, Aug 19, 2010.

  1. 9express

    9express Bobtail Member

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    May 4, 2014
    kissimmee Fl
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    mine is doing the same thing i drained the coolant to change the EGR valves so now i have this information i will try this see how it goes .
     
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  3. great2c4me

    great2c4me Bobtail Member

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    May 18, 2015
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    How does one retrieve fault codes? My a/c fan runs for 4 seconds then shuts off, so my a/c doesn't cool. After power down & restart, it does the same thing, always ending with the same orange triangle "!" light on. it'll still run & charge batteries & run the blower unit inside the sleeper, just not the a/c.
    so, how do I retrieve fault codes? It's a tripac evolution.
     
  4. Hardlyevr

    Hardlyevr Road Train Member

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    Mapleton Depot,PA
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    When the rest of the unit will run but the AC won't, it is usually a sign of low freon which has either leaked from the system, or some other problem.
     
    great2c4me Thanks this.
  5. great2c4me

    great2c4me Bobtail Member

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    May 18, 2015
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    Ya, that makes sense. I'll take it in and hope that type of freon isn't so expensive.
    What's the type anyway, R134? That'd be nice I guess
     
  6. Hardlyevr

    Hardlyevr Road Train Member

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    Mapleton Depot,PA
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    The Freon will not be the biggest cost, depending on how much you lost, and the mechanics decision, replacing the dryer on the back of the cab, can be way over $100 just for that part.
     
  7. bavarian

    bavarian Medium Load Member

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    Feb 13, 2014
    Winnipeg
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    Those exessive problems are strange to me. I got mine in 2011 brand new. Had the harness replaced on warranty because the bunkheater didn't work. Just after the warranty expired I blew the alternator. High loads like coffemaker and toaster might have been too much. Ever since I run those suckers on batteries only and recharge the batteries after the coffee is brewed.
    I have about 4500 hrs on it and works just fine. Still the original belts in there and the replaced alternator. No codes at all.
     
  8. great2c4me

    great2c4me Bobtail Member

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    May 18, 2015
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    So I guess there's no way to get codes from the control panel in the sleeper, like that of a car's check engine light, huh???
    I mean, I guess troubleshooting my problem isn't that hard: the a/c cools for about a minute, the outside condenser fan runs for 4 seconds then stops, the a/c stops blowing cold, and the fan trues running a couple more times, then fails and the APU goes on running without the hvac system. And I get an orange alarm warning light. I can cycle the power but it does the same thing, so we know there's a sensor protecting the hvac system, just don't know what exactly. Though if I could get a code, I could know what I'm taking it into the shop for... hate going into a mechanic without the slightest idea - that's a very dangerous proposition, every time.
     
  9. Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Try pressing the white reset button on the control box mounted under the bunk, usually located in the space where you can access it from outside your truck ( storage space ). That reset button fixes a host of issues.
     
  10. Hardlyevr

    Hardlyevr Road Train Member

    3,270
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    Jul 30, 2009
    Mapleton Depot,PA
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    The old style units would say AC when that was what had failed, the newer ones just the orange idiot light.
     
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