Question about NordicTrack E4000 Treadmill

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The incline ramp on my NordicTrack CX990 Elliptical trainer is stuck. The motor works but the drive screw only turns a little, then stops.

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  • cwa_2 Aug 29, 2010

    Well, I to clarify the original statement of the problem: The motor and
    the drive screw both seem to work. But the *motor* stops after a little
    while. Sorry for the ambiguity. I'm thinking it is either the
    motor/drive screw assembly (motor stops for unknown reason) or the
    control console (sending faulty signals to motor/drive screw assembly). Also, as for the link (dated 2008) you mentioned, I'm not so certain that NordicTrack will believe I bought this unit 6 months ago at Cost Co, since it is a model which as far as I can tell, is *several years old*.

  • cwa_2 Aug 29, 2010

    Actually it is the motor that stops, and hence the drive screw. Either the motor-drive-screw unit is defective, or the controller in the console is sending the wrong signal, but I don't know how to trouble shoot that.

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I am assuming the problem is with your CX990 elliptical and has nothing to do with the E4000 treadmill.

To begin with you may want to try to lubricatet the key moving parts as shown in the user manual.

Next you could try to initiate the callibration cycle on page 22 of the manual.

The manual is detailed enough to work out which components are connecting the drive to the ramp. See if this helps.

Post a comment to confirm if this helped or not.

Posted on Aug 29, 2010

  • 3 more comments 
  • Sam Aug 29, 2010

    not sure if you ran the calibrate function that i had suggested in y previous post?

  • cwa_2 Aug 29, 2010

    Yes, I've tried that. The ramp does move from about 25 degrees to 30 degrees or so, but it goes back down to 25 degreess, not all the way as the manual says it should. And all the appropriate parts are lubricated. I believe it is either the motor/drive screw unit, or the controller in the console, but I don't know how to trroubleshoot that.

  • cwa_2 Aug 29, 2010

    Yes, I've tried that. The ramp does move from about 25 degrees to 30 degrees or so, but it goes back down to 25 degreess, not all the way as the manual says it should. And all the appropriate parts are lubricated. I believe it is either the motor/drive screw unit, or the controller in the console, but I don't know how to trroubleshoot that.

  • cwa_2 Aug 29, 2010

    Yes, I've tried that. The ramp does move from about 25 degrees to 30 degrees or so, but it goes back down to 25 degreess, not all the way as the manual says it should. And all the appropriate parts are lubricated. I believe it is either the motor/drive screw unit, or the controller in the console, but I don't know how to trroubleshoot that.

  • Sam Aug 30, 2010

    unfortunately there is no specific diagnostic available from Nordic Track unless one is there qualified technician who will have the codes for testing at the component level.



    Most people would be left with no choice but to source the suspect parts and replace unless the unit is under warranty which I am assuming does not apply to your case. The parts are listed and available from this site. and also from Nordic Track site which appear to be cheaper.



    It will not be a cheap option especially because you cannot source parts of the console where the controller is - you have to replace the whole console.



    You may have to call a NordicTrack technician who will have access to the diagnostic codes but will obviously charge for service call to make a visit. Perhaps if you call the Nordic Track support and explain the problem they may suggest a solution on how to run the diagnostic.

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This sounds like the drive screw shaft is either loose or broken. The motor will have to be removed to ascertain exactly what the problem is. I couldn't find a diagram of this unit, so I have no idea of the exact construction, but it sure looks like it's going to be a problem with how the drive screw attaches to the motor, and that will be the thing to focus on. Make sure the drive screw only stops, and not the motor rotation, since that would indicate a bad motor or power feed.
Well, I just stumbled onto a neat web page that might just solve your whole problem. Read this blog:
http://en.allexperts.com/q/Fitness-Equipment-Exercise-3787/2008/1/NordicTrack-CX990-Incline-Motor.htm
It sounds like they'll both help you figure out the bad part(s) and replace them.
Good luck, thanks for using FixYa, and hope this helps.

Posted on Aug 29, 2010

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