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International 9900 Fan turning on a lot

Discussion in 'International Forum' started by Dadetrucking305, May 10, 2021.

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  1. May 10, 2021 #1
    Dadetrucking305

    Dadetrucking305 Heavy Load Member

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    Cibolo,Texas
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    The fan on my 9900 is kicking on a lot more frequently that it did in the past.What can be causing this? TIA
     
    Dadetrucking305, May 10, 2021
    Dadetrucking305, May 10, 2021
    #1
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  3. May 10, 2021 #2
    Dave1837

    Dave1837 Road Train Member

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    What engine?
     
    Dave1837, May 10, 2021
    Dave1837, May 10, 2021
    #2
  4. May 10, 2021 #3
    Dadetrucking305

    Dadetrucking305 Heavy Load Member

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    Cummins ISX15 CM870
     
    Dadetrucking305, May 10, 2021
    Dadetrucking305, May 10, 2021
    #3
  5. May 10, 2021 #4
    Smellfunny

    Smellfunny Road Train Member

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    Possibly A/C high pressure is causing it to come on. With the higher temps outside the A/C pressure will go up quickly. How often is it coming on?
     
    Smellfunny, May 10, 2021
    Smellfunny, May 10, 2021
    #4
    Dadetrucking305 Thanks this.
  7. May 12, 2021 #5
    Dadetrucking305

    Dadetrucking305 Heavy Load Member

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    Cibolo,Texas
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    I haven’t timed it yet but it is a lot more frequent than it used to be.
     
    Dadetrucking305, May 12, 2021
    Dadetrucking305, May 12, 2021
    #5
  8. May 12, 2021 #6
    ChuckMartel

    ChuckMartel Light Load Member

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    Does it reach @ 210F and turn on or at any operating temp?
     
    ChuckMartel, May 12, 2021
    ChuckMartel, May 12, 2021
    #6
  9. May 12, 2021 #7
    Dadetrucking305

    Dadetrucking305 Heavy Load Member

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    Cibolo,Texas
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    It never reaches 210
     
    Dadetrucking305, May 12, 2021
    Dadetrucking305, May 12, 2021
    #7
  10. May 14, 2021 #8
    Heavyd

    Heavyd Road Train Member

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    AC / defrost operation.
     
    Heavyd, May 14, 2021
    Heavyd, May 14, 2021
    #8
    Dino soar, God prefers Diesels and Dadetrucking305 Thank this.
  11. May 14, 2021 #9
    Dadetrucking305

    Dadetrucking305 Heavy Load Member

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    Cibolo,Texas
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    So it is normal?
     
    Dadetrucking305, May 14, 2021
    Dadetrucking305, May 14, 2021
    #9
  12. May 15, 2021 #10
    God prefers Diesels

    God prefers Diesels Road Train Member

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    Yes. If you're running defrost, or have your A/C button activated. The A/C condenser has to have airflow going over it. So if you aren't moving, the fan has to cycle practically non stop.
     
    God prefers Diesels, May 15, 2021
    God prefers Diesels, May 15, 2021
    #10
    Dino soar, Dadetrucking305 and Heavyd Thank this.
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