'15 F800GSA overheated, fan not cycling??

Discussion in 'Parallel Universe' started by KILR0Y, Aug 21, 2019.

  1. KILR0Y

    KILR0Y Is here...

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    Coming home from work yesterday at around 100 deg F i was stopped at a traffic light for quite some time after highway speeds. When the light turned green i took off and noticed a huge loss of power, and a check engine light. Eventually the bike stalled and i pulled over to the sidewalk. After cooling a bit it started up and i drove 2 blocks home and parked it until today.

    Can't seem to find anything about testing the fan or location of the fan fuse. Can anybody more versed in this give me a little advice? After pondering over this i can't ever remember hearing the fan come on (that day, or ever) even on dessert ADV rides.

    Only issues ever are yesterday I'm having overheat issues, which i suspect is the result of inop fan...

    Bike is 2015 F800GSA stock except for AFIXED installed.

    Any help would be greatly appreciated.

    Thanks!
    #1
  2. TRJeff

    TRJeff Adventurer

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    Check first if you can spin fan by hand, mud and road grime/trash can block fan from turning, if fan turns easily then you will need to see dealer or if available someone with a GS-911WIFI, if fan had tried to start and overloaded the electrical the canbus would reset after a engine shutdown and restart .
    #2
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  3. KILR0Y

    KILR0Y Is here...

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    Ok, Fan doesn't spin "freely" by hand. It seems a little gummed up.

    Replace it or is there a way to get it freed up?

    Are there good aftermarket options?

    Will the fan relay start on its own after I R&R?

    Thanks a bunch
    #3
  4. KILR0Y

    KILR0Y Is here...

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    Got the fan out and it spins, but nor easily. Wondering if the dealer will test, or if i can apply power. Does anybody know if it takes 12v straight?
    View attachment 1849551

    Holy Shit, $322 from dealer... there's got to be another option.
    #4
  5. bmwroadsterca

    bmwroadsterca RadioFlyer

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    Used one from eBay.
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  6. KILR0Y

    KILR0Y Is here...

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    Just bought, thx!

    Hopefully install and it'll work with no other issues. Do i need to reset anything or replace a fuse?
    #6
  7. KILR0Y

    KILR0Y Is here...

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    Anybody in the Reno-Tahoe area with a GS911 willing to help me diagnose/test my bike to assure the new fan is operable after replacement is installed? Thanks.
    #7
  8. TRJeff

    TRJeff Adventurer

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    No fuse, canbus monitors amperage and shuts down fan if overloaded,
    #8
  9. bmwroadsterca

    bmwroadsterca RadioFlyer

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    Actually the ZFE does this. CANbus is a Controller Area Network.
    #9
  10. KILR0Y

    KILR0Y Is here...

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    So the fan should start automatically once the replacement is installed into the bike and the temp sensor tells it to run (assuming the replacement works)?
    #10
  11. Scubalong

    Scubalong Long timer

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    You can let the bike idle for about 15 minutes, the fan should turn on when the temperature reaching 4 to 5 bars on the gauge.
    #11
  12. ROMAD

    ROMAD Been here awhile

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    The free version of Motoscan has a fan off/on test. I used it myself because I never heard the fan come on when riding in TX summer heat. After the test I did get it to come on normal after a couple long lights in stop and go cross town and 96F temps.
    #12
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  13. KILR0Y

    KILR0Y Is here...

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    Got the new fan today and it spins nice and free with flick of the finger. Installed & tested via idle - cycled great after about 15 min idle as previously posted.

    All good now for $99 ebay and about 2hrs labor. I'm sure i saved myself about $500 over new/oem with shop install.

    Thanks for the information. Glad i discovered it 2 blocks from home and not 40 miles out in the desert on a 100deg day.
    #13
  14. roookie1

    roookie1 Been here awhile

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    Connetc the fan directly to 12v then you know if you solved the problem. Can be the switch or wiring..
    #14