I just replaced the drive motor. How do I calibrate the treadmill before use?

see this steps and fix it. God bless you

ERROR CODE # 7

E7- 1) Alternative Elevation Motor

1)Cause: Elevation Motor not moving Solution:Check Elevation Motor connection

2)Cause: Elevation Elevation Motor screw binding Solution: Clean screw and lubricate

3)Cause: Elevation Motor Motor out of Range Solution: Check motor out of elevation

4)Cause: E-Motor Potentiometer: Solution: Replace Elevation Motor

2)Alternative:

Display Doesn't Light Up: a)Cause: On/Off switch Solution: Test unit is turned on b)Cause: Insufficient Power Source Solution: Plug dedicated120V, 20Amp Outlet

c) Cause: Line Cord Damaged Solution: Replace Line Cord

d)Cause: Fuse Solution: Check Fuse on MCB

this means the treadmills power reading when the treadmill was operating at speeds of 1 miles per hour or less . Excessive amount of power is being demanded from the motor controller for an excessive period of time
Causes:treadmill user (especially a heavier user) is standing on the drive belt.
the drive belt too is badly worn.
brush motor faulty
SCR motor cotroller lekay or shorted drive motor or capacitor
IN short RUN the sotware calibration for diagnostic.
Remedies:Lube the deck belt, determine using AC ammeter for the amount of use the current being drawn by the readmill.Replace the drive motor brushes.or replce the motor controller board. see the block diagram
God bless you

Try to RUN the sotware calibration for diagnostics.
This means user is heavy standing in the drive belt.
Causes: drive belt is worn, brusher motor faulty, motor faulty, motor controller board faulty
Remedies: use AC. clamp for drawn currente entering to the treadmill. Repair brusher and motor. Replace motor controller board.

God bless you.
see the block diagram

Incline calibration is necessary when: the display shows ERR7, the drive board incline error LED ( LED5) lights or the incline has extended beyond its normal rangeThe goal of calibration is to synchronize the incline set mechanically and electronically. Mechanical calibration sets the incline motor pipe to the 0% position. This happens when the red line on the thin pipe is even with the end of the thick pipe. Electronic calibration sets the variable resistor (VR) value to the 0% position. This happens when the voltage across the VR blue and green wires is 1.20 VDC.
Readings of VR voltage (blue and green wires) should show around 1.20 VDC at the lowest position and around 3.80 VDC at the highest position. If the VR looses calibration or cannot be set to 1.20 VDC, replace the VR. If the incline motor gets voltage from the drive board but fails to operate, replace the incline motor set. If the incline fuse blows again and again, replace the incline motor set.

Good day.
You need to Calibrate the treadmill.
Open the Motor Cover , you will see the instruction for to calibrate the machine, with Wiring diagram.
Follow the steps.
Blessing
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Basic Treadmill Calibration

I have a NordicTrack C2155. Incline not working. There is a schematic inside. There are red, white, & black wires from the circuit board to the incline motor. Unplug the treadmill and have a licensed electrician construct a flying lead cord with a male spade on neutral and female spade plug on hot. Connect neutral to white and hot to where either red or black were connected. Plug in to see if the motor runs. Careful to remove power when the incline reaches its limit and reverse direction. If the motor runs in both directions, the motor is good. Follow the black two conductor wire to the circuit board and unplug from board. Check continuity across this switch. Run motor and this should toggle off and on. If all this checks out then the problem must be with the circuit board. On my treadmill, the schematic says that +5v should supply the sensor, but I only get +3.3v, which is TTL level. The drive motor sensor supply is +5v. The incline motor doesn't even show a sign of trying to run. Either the output transistor is burnt out or the low voltage caused an error so that it does not try to run the motor. Either way, I'm quite certain that a new controller board will remedy the problem.

ICON CALIBRATION INSTRUCTIONS- INCLINE
1) Press the Stop and the Speed Up keys down while inserting the safety key.
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.



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.

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.

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.
4.
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. It is possible the console is not giving the proper signal but we've never seen it happen in thousands of treadmills.

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

Try calibrating the unit first, if this does not work than check below:

1. If the incline moves but you 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 and needs to be replaced.

2. If the incline moves but only just a bit, it could be a problem as simple as the gearbox on the motor being jammed. 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.

3. 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 of the measurements. If you have voltage but the motor won't move, you need to replace the motor.

4. 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.

That sounds like a motor control that is shorted out,the only thing you can do is replace the motor control.When replacing the controller follow the instructions to calibrate it to the console.