Question about Nordic Track NordicTrack Treadmill, A2550

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Nordic Track c1800s, Model NTTL99120, runs but the belt stops when I get on it. When this happens the speed indicator falls back to 0. All the other indicators stay the same. Ater it stops I have to pull the safety key out and re-insert it to get it going again just to have it stop again. I've adjusted the speed sensor and the belt tension. No change. I ran the calibration sequence and everything finished correctly except for the second part of Level 2 which has to do power. The test showed that the speed of the machine has been properly set at 10 mph, but when pressing the plus button to run up to 85 it never makes it past 27 before the belt stops rotating. I watched a video of how to adjust a screw on the controller board to increase the power to the motor, and I tried it, but it didn't seem to work right because on retest it seemed to have less power than before. I was thinking of replacing the board. Am I on the right track?

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Posted on Jan 02, 2017

  • 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

  • 218 Answers

SOURCE: Hello, I have a Nordic Track 2050, and got on this

console is bad no other alternative, check ebay for part

Posted on Aug 11, 2010

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Is the motor running? If not, is it receiving power? Is the belt slipping? If motor has brushes, they might need replacement.

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The Steps for Newer Style Console Calibration

1. Locate the calibration area on the rear or underside of the console (a hole, near the console's center, that goes through to the electronics board. (This hole should not have a screw in it.)

2. Insert a pencil (eraser end), into the hole and feel around for the cal button (will click when pressed).

3. Press the button 2 times (with the pencil eraser). The first click should show CL11 in the console, the second click should show CL21.

4. If the process was done correctly, and CL21 appears in the console, you are in "calibration mode." The next few steps consists of pressing buttons on the console and observing settings. This will not require any other tools.

5. Press ENTER. CL22 should display in the TIME window and (??) in the SPEED window.

6. Press ENTER. CL23 should display in the TIME window and (??) in the SPEED window.

7. Press ENTER. CL24 should display in the TIME window and (??) in the SPEED window.

8. Press ENTER. CL25 should display in the TIME window and (??) in the SPEED window.

9. Press ENTER. CL26 should display in the TIME window. You should then see the letter "E."

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11. Push the STOP/START button. For safety, at this point, you should step off, or be off, the treadmill.

12. Push the ENTER button. The walking belt should start to move, accelerate to maximum speed, then stop on its own.

13. When the belt stops, the incline should self test by raising to its highest incline position, then lowering back down to its lowest position.

14. Once the incline test is complete, push the POWER button 2 times. The unit should shut off and the console should go completely blank. If this happens, the treadmill is done calibrating and is ready for use.

15. If the letter "F" appears in the SPEED or INCLINE window when the power button is pressed 2 times, the treadmill is indicating a failure somewhere either in the SPEED or INCLINE (depending on the window the "F" appeared in). Troubleshooting the failure would be the next step.

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1 Answer

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

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1 Answer

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1 Answer

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