Carrier comfort pro APU trouble

Discussion in 'Trucks [ Eighteen Wheelers ]' started by calvinbabb, Aug 5, 2022.

  1. calvinbabb

    calvinbabb Light Load Member

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    31
    Apr 28, 2016
    Trenton, Fl.
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    The motor runs fine. The ac will run for a while then pop the breaker. Sometimes this will only happen a couple time through my break. Other time it will pop the breaker every few minutes. The ac blows nice and cold when it doesn’t pop the breaker. I have change both capacitors inside the ccu. No change. Not throwing any codes on the ECM. I know it’s been mentioned before about this happening to other people. What was the fix?
     
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  3. TruckerPete1990

    TruckerPete1990 Road Train Member

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    Bentonville Arkansas
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    Generator capacitor mine was between the Engine fan and engine radiator
     
  4. calvinbabb

    calvinbabb Light Load Member

    53
    31
    Apr 28, 2016
    Trenton, Fl.
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    Got it thank you. You don’t by chance know what microfarad It was?
     
  5. TruckerPete1990

    TruckerPete1990 Road Train Member

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    Bentonville Arkansas
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    I Don't i honestly didnt even test it. I Just got tired of that breaker tripping all the time while sleeping so it was worth the risk and it paid off. Hasn't tripped since i replaced it which was about 400 hours ago now lol
     
  6. kranky1

    kranky1 Road Train Member

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    Sep 16, 2015
    Ontario, Canada
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    The way I fixed mine was I took the engine and generator and the rest of that useless junk out of the cabinet and made myself a nice toolbox. Haven’t had a minutes trouble with it since.
     
  7. Sally21045

    Sally21045 Bobtail Member

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    Mar 29, 2019
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    Did you figure out the issue?
     
  8. Sally21045

    Sally21045 Bobtail Member

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    1
    Mar 29, 2019
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    Did you fix it, im having the same issue.
     
  9. TruckerPete1990

    TruckerPete1990 Road Train Member

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    Jul 16, 2012
    Bentonville Arkansas
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    I fixed this on mine with the generator capacitor. No issues after I replaced it.
     
  10. calvinbabb

    calvinbabb Light Load Member

    53
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    Apr 28, 2016
    Trenton, Fl.
    0
    yes, it was the 45 Micro farad capacitor for the generator.
     
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