Question about Nordic Track Mc2100 Lts30 Treadmill Motor Controller

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MY MC-1200 RUNS AT FULL SPEED NO MATTER WHAT BUTTON I PUSH.

Doesn't matter which speed button I select the motor takes off and stays at full speed.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 103 Answers

SOURCE: belt goes full speed when started the shuts off thats it

Hello there. This is usually a problem with the control pwb. The controller is what tells the motor how fast to run.
This item is available @ iconservice.com.
Locate your model number before going to the site. This is located on the lower frame (under the walk belt) or on your users manual. Once you have that you may go to the replacement parts section of the site and look for the controller.

Repair Procedure,
To locate this item you will need to access the motor area. Usually 3 or 4 screws on the rear of the unit on the opposite side of the walk belt. If the cover does not come off after those screws are removed then u will need to access under the bottom of the cover area to remove 2 more screws. This is done by tilting the machine on its side.
After removing the cover you will see the control pwb. (silverish with a circuit board) There will be a number of connectors on the controller. I suggest either taking a digital picture or writing down the wiring going to the board as to not mis-wire something when re-installing the controller. Remove the wires and there will be 2 screws holding the controller in place, remove them as well. After reinstalling the controller in the reverse procedure as above be sure to calibrate the unit. (directions should be located in the box)
Good Luck! Tim

Posted on Jan 05, 2010

Testimonial: "im believe it is called a motor control board and thats what i believe it is too. the motor is good but i am having trouble finding the right part "

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  • 218 Answers

SOURCE: The Nordic Track machine's controls seem to be

Remove the console from the treadmill and remove the back
remove and replace the ribbon cables that run from the keypads to the control board (they are flat plastic strips that push into the board).
remove and replace all the connections on the console
reattach the console and calibrate by doing the following:
1. With the key off press the speed + and stop buttons at the same time and hold
2. place the key on and release the buttons
3. press the stop key once
4. press the speed up til it reaches 85
5. if your max speed is 10 mph then it should read about 9.8-10.2

If the keys will not work then the console is bad and would need replaced.

Posted on Aug 11, 2010

  • 13 Answers

SOURCE: Nordic Track c2200 no speed

It likely is the controller if it was speeding up and down erratically. Check the position of the reed switch to make sure it is positioned about 1/8" away from the magnet in the side of the front roller pulley. Run a diagnostic program as follows. Press the stop and speed arrow up buttons until you insert the key. Press the stop once or twice until you get to a screen with 2 sets of zeros. Now press and hold the speed arrow up button until one number set shows 8.5. The unit will go to full speed so be careful not to be on the walking belt. The other number set should top out shortly at either 10.0 or 12.0 based on whether your speed buttons go up to 10 or 12. If the motor races past your top number,( don't let it run that way as you may damage the motor), pull the key. If the readout is above or below your target by more than .4 and not flucuating a lot, you may need to tune the potentiometer on the controller. Counter clockwise turn with a phillips screwdriver turns the motor speed down. Be carefull not to short out the controller board by touching components with screwdriver. If not comfortable ask a friend with electronics background. If you turn the pot. too far it will break. It will not go a full revolution in either direction and tiny movements are recommended. Again I believe your controller needs replacing.

Posted on Oct 03, 2010

vetteman3002
  • 2299 Answers

SOURCE: NTL07707 Nordic Track C2155 The treadmill ran at

I would say yes, you do need the controller. If you tried to run the diagnostics and it locked up then yes some component in the controller is malfunctioning.

Posted on Nov 01, 2010

ercupa190
  • 12223 Answers

SOURCE: NordicTrack speeding up for no reason

This make all this adjustments:
Make sure the sensor speed is as close as possible to the pulley withouttouching it. You will see a magneton the face of the pulley; make sure the sensor is aligned with themagnet. There is a screw thatholds the sensor in place that needs to be loosened to adjust thesensor. Re-tighten the screw whenfinished.
Good luck, sincerely.

E.CUADRA

Posted on Nov 29, 2011

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Nordic Track c2200 no speed signal. My NT c2200 treadmill behaved erratically briefly (sudden speed changes up and down) before quitting altogether. The console now behaves as though it's working but the...


It likely is the controller if it was speeding up and down erratically. Check the position of the reed switch to make sure it is positioned about 1/8" away from the magnet in the side of the front roller pulley. Run a diagnostic program as follows. Press the stop and speed arrow up buttons until you insert the key. Press the stop once or twice until you get to a screen with 2 sets of zeros. Now press and hold the speed arrow up button until one number set shows 8.5. The unit will go to full speed so be careful not to be on the walking belt. The other number set should top out shortly at either 10.0 or 12.0 based on whether your speed buttons go up to 10 or 12. If the motor races past your top number,( don't let it run that way as you may damage the motor), pull the key. If the readout is above or below your target by more than .4 and not flucuating a lot, you may need to tune the potentiometer on the controller. Counter clockwise turn with a phillips screwdriver turns the motor speed down. Be carefull not to short out the controller board by touching components with screwdriver. If not comfortable ask a friend with electronics background. If you turn the pot. too far it will break. It will not go a full revolution in either direction and tiny movements are recommended. Again I believe your controller needs replacing.

Oct 01, 2010 | Nordic Track Exercise & Fitness

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