I have a Norditrack X5I NTL15909.0 and the incline stopped working so I did a calibration and it is stuck in calibrate mode.Every time you turn the power on it tries to calibrate up 2" and down 2"?

Method 1: Press Stop and Speed Up, Insert the Key
To calibrate the incline, press and hold the stop and speed increase buttons. While holding the buttons, insert the safety key. The machine will now be in calibration mode. Press the Stop button once. Then, press one of the incline buttons to begin the calibration. It is recommended that you do not stand on the machine while the calibration is taking place.
The machine will move to its highest incline position, then to its lowest decline position. Please wait for the machine to come to a complete stop. When the machine stops moving, the calibration is complete. Remove the safety key from the console to exit calibration mode.
Method 2: Press the Stop Button, Insert the Key
To calibrate the incline, press and hold the stop button. While holding the button, insert the safety key into the console. The machine will now be in calibration mode. Press the stop button once. Then, press either the incline up or incline down button to begin the calibration. It is recommended that you do not stand on the machine while the calibration is taking place.
The machine will move to its highest incline position, then to its lowest decline position. Please wait for the machine to come to a complete stop. When the machine stops moving, the calibration is complete. Remove the safety key from the console to exit calibration mode.

Hi,
Try to do the following hope it will solve the problem.
if its doesn't solve the problem then the the incline motor or the control panel is faulty.
HOW TO USE THE SETTINGS MODE T
he console features a settings mode that allows you to connect your incline trainer to your own wireless network and to log in to your iFit Live account. The settings mode also allows you to turn on and turn off the display demo mode. You may also be able to select the unit of measurement.
Select the settings mode.
Insert the key into the console . Next, select the start menu. Then, press the i button in the lower right corner of the screen to select the settings mode.
Select the maintenance mode.
Press the Maintenance button in the lower right corner of the screen to enter the maintenance mode.
Calibrate the incline system of the incline trainer.
Press the Calibrate Incline button. The incline trainer will automatically rise to the maximum incline level, lower to the minimum incline level and then return to the starting position. This will recalibrate the incline system. Press the Begin button to calibrate the incline system or the Cancel button to return to the maintenance mode. When the incline system is calibrated, press the Back button. IMPORTANT: Keep pets, feet, and other objects away from the incline trainer while the incline is calibrating. In an emergency, pull the key from the console to stop the incline calibration.
Restore factory defaults.
If necessary, press the Restore Defaults button to reset the firmware to the original factory firmware. This will erase all firmware updates that you have downloaded. Press the Begin button to restore the default firmware or the Cancel button to return to the maintenance mode. When the restoration is complete, the words PLEASE CYCLE POWER will appear in the grey box. Press the power switch into the off position. Wait for several seconds, and then press the power switch into the reset position. It may take a minute for the console to be ready for use.
Exit the maintenance mode.
To exit the maintenance mode, press the Back button repeatedly.
www.electro-medical.blogspot.com

All icon models are the same. The easiest way to incline calibration is to start the treadmill, push the incline up button and then after you release the button, remove the safety key. Replace the safety key and the treadmill should calibrate.
If that doesn't work, press the stop and speed up buttons and hold, then place the safety key in place. This will bring you to the speed/incline calibration. Press stop again. now press incline up. This will run the incline calibration.
You may need to remove the hood and manually with a drill lower the motor. Using a slot screwdriver bit, lower the motor a bout 50 turns and then try the procedure above again if necessary.

ICON CALIBRATION INSTRUCTIONS- INCLINE
1) Press the Stop and the Speed Up keys down while inserting the safety key. If this doesn’t work, click on the help topic entitled “Alternate Calibration Codes” for key sequence instructions to enter calibration.
2) Press the Stop key one time. The Time window should read EP:2P. Some newer models may also say FP, Pass, or the like. This means that it passes the EPROM test.
3) Press either incline key and the incline will calibrate automatically.
4) THIS IS A VERY IMPORTANT STEP BECAUSE YOU WILL GET AN ERROR MESSAGE IF THIS STEP IS SKIPPED.After completing calibration of incline, press the Stop key and then remove the safety key.

First we need to do a calibration follow this procedure
Press the Stop and the Speed Up keys down while inserting the safety key.
Press the Stop key one time. The Time window should read EP:2P. Some newer models may also say FP, Pass, or the like. This means that it passes the EPROM test.
Press either incline key and the incline will calibrate automatically.
THIS IS A VERY IMPORTANT STEP BECAUSE YOU WILL GET AN ERROR MESSAGE IF THIS STEP IS SKIPPED. After completing calibration of incline, press the Stop key and then remove the safety key.
If the incline moves but you it will not operate normally nor calibrate, check the wiring from the incline sensor to the power board. If all looks normal, put it back in calibration and see if you see a blinking “- -” symbol in the incline window when you are calibrating. If not, the incline sensor is bad Call icon Fitness @ 800-999-3756, they may have the sensor or they tell you, you need to replace the incline motor

First we need to do a calibration follow this procedure
Press the Stop and the Speed Up keys down while inserting the safety key.
Press the Stop key one time. The Time window should read EP:2P. Some newer models may also say FP, Pass, or the like. This means that it passes the EPROM test.
Press either incline key and the incline will calibrate automatically.
THIS IS A VERY IMPORTANT STEP BECAUSE YOU WILL GET AN ERROR MESSAGE IF THIS STEP IS SKIPPED. After completing calibration of incline, press the Stop key and then remove the safety key.
If the incline moves but you it will not operate normally nor calibrate, check the wiring from the incline sensor to the power board. If all looks normal, put it back in calibration and see if you see a blinking “- -” symbol in the incline window when you are calibrating. If not, the incline sensor is bad call icon Fitness @ 800-999-3756, they may have the sensor or they tell you, you need to replace the incline motor

ICON CALIBRATION INSTRUCTIONS- INCLINE
1) Press the Stop and the Speed Up keys down while inserting the safety key. If this doesn’t work, click on the help topic entitled “Alternate Calibration Codes” for key sequence instructions to enter calibration.
2) Press the Stop key one time. The Time window should read EP:2P. Some newer models may also say FP, Pass, or the like. This means that it passes the EPROM test.
3) Press either incline key and the incline will calibrate automatically.
4) THIS IS A VERY IMPORTANT STEP BECAUSE YOU WILL GET AN ERROR MESSAGE IF THIS STEP IS SKIPPED. After completing calibration of incline, press the Stop key and then remove the safety key.

1. If the incline moves but you it will not operate normally nor calibrate, check the wiring from the incline sensor to the power board. If all looks normal, put it back in calibration and see if you see a blinking “- -” symbol in the incline window when you are calibrating. If not, the incline sensor is bad.
2. 
   
3. If the incline moves but only just a bit, it could be a problem as simple as the gearbox on the motor being jammed. We remove the motor from the treadmill, reconnect the wiring, and then try to run the incline motor outside the treadmill. Many times, this will unjam it if that is the problem and then reinstalling it in the treadmill will get it to work. If you have the same problem or it doesn’t run outside the machine and you can hear it try to work, you need to replace the incline motor.
4. 
   
5. If the incline motor does not move, we need to figure out if the motor is getting voltage. Use a simple multi-meter and set it to AC volts. When you put it into calibration, it tries to calibrate the directions one at a time. Measure across the white and black wires first, then measure across the white and red wires second. If the motor is getting voltage you will read 120VAC (or thereabouts) one one of the measurements. If you have voltage but the motor won't move, you need to replace the motor.
6. 
   

If the incline motor does not move and you have done the voltage test and you do not have any voltage present, there is a problem in the electronics board that supplies the power. If the console is powering the drive motor as normal, you can bet it is getting an incline signal and the power board needs to be replaced (some models have an integrated power board/controller) so if there is only a single board the whole board has to be replaced

Calibration of incline Motor
Press the Stop and the Speed Up keys down while inserting the safety key. For key sequence instructions to enter calibration.
Press the Stop key one time. The Time window should read EP:2P. Some newer models may also say FP, Pass, or the like. This means that it passes the EPROM test. Press either incline key and the incline will calibrate automatically. THIS IS A VERY IMPORTANT STEP BECAUSE YOU WILL GET AN ERROR MESSAGE IF THIS STEP IS SKIPPED. After completing calibration of incline, press the Stop key and then remove the safety key.

It sounds like you just need some calibration. To calibrate incline, turn power on press press any incline buttons, as the incline try to change unplug the key. Now re-nsert key and incline will self calibrate,

MAKE SURE YOU STAND TO THE SIDE OF THE TREADMILL WHILE PERFORMING THIS
1)Connect the wall power to the treadmill
2)Remove the safety key
3)Hold down the red stop button and red increase speed button (this is the red triangle next to the start button)
4)Insert the safety key while holding both buttons down in step3
5)The treadmill will now go into a diagnotstic calibration mode
6)Let go of both buttons in step 3 and press the oval stop button once
7) Now press the up arrow green incline button once(This is located to the left of the yellow program button)
8) Allow the treadmill to go through a calibration cycle, once it completes and stops moving remove the safety key count to 3 and reinsert.