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Anonymous Posted on Apr 12, 2017

Nautilus Sportseries has no power to upper board

I have an older Nautilus Sportseries LE-X treadmill that doesn't have any power at the upper display board. I dont know where to find the serial number for it, but its old enough that it doesn't have an emergency stop. It sat out in a cold garage all winter - I found a few mouse poops inside, but none of the wires are chewed. There are some lighted diodes on the lower board, but no display on the upper board. No way to turn treadmill "on". Someone recommended that I replace the lower board. It makes sense to me, but I don't want to spend $300 on a part unless I'm sure it will work. Any suggestions?

5 Related Answers

maxtreadmill

John Mazmanian

  • 832 Answers
  • Posted on Apr 09, 2010

SOURCE: hi i have a code E7 that show on my upper board in

Pull the connector off the incline motor off then connect (usually red and black thick leads) your multi - meter then select ohm X1 you should get a reading about 1.7 ohms. then check if the motor see if it is stuck. Then wrap a peice of cloth around the incline screw and with a pair of vise grip gently apply enough pressure to see if you can unstick that screw, reset your power and if the error code clears up, if not the VR control in the motor can be defective and you must rplace the motor.
If the reading show open I would suspect the motor is bad then again replace of the motor.

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Ross Metcalfe

  • 135 Answers
  • Posted on Dec 19, 2010

SOURCE: 15A fuse going out. Replaced 3 with no success,

You are going to need a motor controller, or find someone who can repair the one you've got there.
If it blows the fuse immediately on power up, it may require a full wave bridge rectifier replaced on the controller. If it blows when the start button is pushed, it might be a MOSFET or SCR found on the motor controller..
Sportsart fitness can be reached by phoning 1-866-709-1750. The website is found at
http://www.sportsartamerica.com There you can find a dealer/service depot in your area.

Anonymous

  • 1 Answer
  • Posted on Jan 12, 2011

SOURCE: I have a Lifefitness Treadmill model TR 9100,

Ive just had lifefitness out to diagnose the same problem, its the Console PCB £413.74 all in from them to fit yourself Cant do anything else, save yourself the callout I was charged Good luck Adrian Webb 07780 993877

Anonymous

  • 1 Answer
  • Posted on Feb 07, 2011

SOURCE: treadmill will not turn on.

i took out the on/off swith when i replaced it the light stays on all the time

Anonymous

  • 4 Answers
  • Posted on Mar 04, 2011

SOURCE: We have a Freespirit treadmill model number

Treadmill RT86 FREESPIRIT elevation error

Try resetting to treadmill
http://www.youtube.com/watch?v=TuWLRJiedpw

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Dear Sir:
I just want to say to L5 means many things.
1)You must check socket wiring from upper board(display) vs lower board(controller motor board)
2)Short circuit in capacitor(EMI) in input circuit or Short circuit in Main Motor Test.
3)Faulty Controller Motor Board-Replace.
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Since the Controller Motor Board control 90% function in Treadmill , will the most probably cause, after you did Test all Step before mentioned. And strong concluded the Lower Board is Faulty.
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