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  1. 01-31-2016 09:33 PM #1
    awd2ks4
    awd2ks4 is offline
    Veteran Member Four Rings awd2ks4's Avatar
    Join Date
    Aug 25 2008
    AZ Member #
    32327
    My Garage
    2000 S4, Blown LS2 240sx hatch, LS3 240sx vert, 02 wrx
    Location
    Santa cruz

    Random heater problem

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    Hey guys my heater just randomly stopped blowing air and the hvac read out for the fan power keeps going to full and dials down to zero and repeats. No air blowing the whole time. Is it the controller or motor??
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  2. 01-31-2016 10:08 PM #2
    Anonymous User
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    Established Member Two Rings
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    Apr 04 2015
    AZ Member #
    324985
    My Garage
    B5 S4, 92' SC300', 84 Cressida
    Location
    Bay Area, CA

    Check the fuse for it. Same thing happen to me and the fuse was blown
    01 B5 S4
    Autospeed DTS, Forge DVs, APR BiPipe, APR Snub mount, Stasis/Alcon Mono4 355mm BBK, Unknown Short Shifter, Blitz TT, NefMoto Stage2, SSAC v2, TTV Steel FW, CM FX300

    16 A3 e-Tron
    Stock for now
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  3. 01-31-2016 10:56 PM #3
    awd2ks4
    awd2ks4 is offline
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    Aug 25 2008
    AZ Member #
    32327
    My Garage
    2000 S4, Blown LS2 240sx hatch, LS3 240sx vert, 02 wrx
    Location
    Santa cruz

    Fuse is good I found a thread with a video showing the same problem. http://www.audizine.com/forum/showth...heater-control
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  4. 02-01-2016 03:33 PM #4
    awd2ks4
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    Aug 25 2008
    AZ Member #
    32327
    My Garage
    2000 S4, Blown LS2 240sx hatch, LS3 240sx vert, 02 wrx
    Location
    Santa cruz

    Anybody got any ideas where to start
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  5. 02-01-2016 07:24 PM #5
    Nizmo
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    Oct 09 2015
    AZ Member #
    361010
    Location
    Boston

    Based on your description alone I would look into this:
    https://www.google.com/search?q=audi...00032131124430
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  6. 02-01-2016 07:51 PM #6
    awd2ks4
    awd2ks4 is offline
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    Aug 25 2008
    AZ Member #
    32327
    My Garage
    2000 S4, Blown LS2 240sx hatch, LS3 240sx vert, 02 wrx
    Location
    Santa cruz

    Where is that located in the car
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  7. 02-02-2016 07:04 AM #7
    Nizmo
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    Oct 09 2015
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    361010
    Location
    Boston

    I think the resistor is located near the blower motor

    From ECS Tuning:https://www.ecstuning.com/Audi-B5_S4...tor/ES2143386/
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