Hello, WE have the model 4100i treadmill and the elevation is stuck in the highest position and won't reset to zero. How do I fix this or who can I call for this repair? Thanks, Tom

Hey there, sorry to hear you're having an issue with your elevation motor. I would be happy to help you solve the problem.
Since you already installed your motor you can go straight into diagnostic mode.

To get into Diagnostic Mode on your L8
Make sure to turn off your treadmill.

-ET's - Press Menu and Start at the same time
-CT's - Press Manual (or Display^) and Start at the same time
-All other L SERIES mills - Press Display (or display and Start at the same time

SideNote-
-*CT's that were manufactured after 09/2003 - Press Display and start at the same time.




Few things you want to do, if you haven't already.

A. Align the motor with the clevis mount and install the motor mounting pin.

B. Insert hitch pin.

C. Reconnect the elevation harness to the lower board

D. Set the lowest limit switch by holding the UP elevation button for 5 seconds. Then press and hold the DN elevation button one more time to make sure you only hear a click.

E. For L7/L8 machines; Thread the elevation nut to where its flush with the threads on the "worm' shaft.

F. Mount the elevation nut to the leg assembly by lining up the holes on the leg assembly. You may have to move the leg assembly so that the holes on the elevation nut line up. Then slide the two elevation pins through the elevation assembly and into the elevation nut. then secure the pins with the 2 set screws.




To calibrate your potentiometer you can try to adjust while it is installed but for best results you must calibrate it before its in your motor housing.







G. Calibrate the elevation potentiometer and to do so you must;
1st: Visually confirm treadmill is leveled. (0% grade)
2nd: Adjust the settings as follows;
All L SERIES millls should read 0.0
3rd: If the setting is incorrect, follow these steps.
Step 1: Turn the post of the potentiometer all the way
CLOCKWISE.
Step 2: SLOWLY turn the potentiometer COUNTER
CLOCKWISE until the setting is correct.

H. Carefully install potentiometer into the motor housing
*NOTE: The setting may vary when inserting the potentiometer
into the motor. As long as the change is minimal, fine
adjustment can be achieved by rotating the meter
while inside the elevation motor.

I. Press OFF to turn treadmill off. Then restart the machine in manual mode to TEST elevation after resetting your potentiometer. As long as the change is minimal, fine adjustment can be achieved by rotating the potentiometer while inside the elevation motor.


For more Diagnostic features and possibly further detail, I will be attaching a Link to your machines service manual. I hope this helps, always hear to help. SportSmith.

http://www.sportsmith.net/images/product_support/landice/Manuals/Service/P0472050%20L%20Series%20Service%20Manual.pdf

What about the incline number at your display ? is 0 or at higher level? at this incline your treadmill is work or stop after 10 sec?

1) LUBe the elevation motor, in shaft and gear
2) adjust the small POTentiomenter for to liberate the elevation motor
3) clean the relais contacts, and tight every connector.
see the diagram and fix it.
God bless you

PLeae RUN the software calibration for troubleshooting go under the HOOD motor and read the instruction steps, or go to instr. manual in how to enter in the s.calibration and fix it.

However you can measure the input voltage elevation motor, and lube the shafte, gear, see the photo and diagram attached.
God bless you

LUBE the elevation motor: rack+pinion and the motor +try to adjust the POT see the picture+ diagram

However RUN the software calibration for diagnostic, troubleshooting, and fix it.

God bless you

Run the software calibration for diagnose, troubleshooting, and fix it.
2) clean the gear and shaft from elevation motor.
3) adjust the POT for better improvement.
see the diagram
God bless you

hi,
Try AUTO-CALIBRATION first. For that do the following.

With the safety key in place, turn the treadmill ON . Press and hold SELECT. Now you can perform auto-calibration by pressing START.

(The treadmill will run through minimum and maximum speed and elevation. This will take 3 to 5 minutes. Let the treadmill perform this complete function. "END" will appear when auto-calibration is complete. When auto-calibration is complete, it will take about 30 seconds for the treadmill to reboot and return to the start-up screen)

If it doesn't help then the motor control module is faulty. You have to replace or repair the motor control module.

OK

You need to have the power supply board rebuilt with larger Caps and resistors. Look on the internet under treadmill repairs. The board is easy to replace yourself so don't have someone come in and overcharge you. I think about 4 screws and two plugs.

Although it is fairly rare the incline motor can jam up into the highest position and get stuck there. To fix this take off the plastic hood that covers the incline motor and depending on the motor you should be able to wind it with your hand out of the highest position. When it is out of the highest position run the calibration as described in the owner's manual and it should go all the way up and all the way down. If it is not this type of motor that can be wound by hand then the first and last thing to do is to try calibration of the incline as described in your manual. If this does not work then a new incline motor is needed.

try caibrating it.