Kettler marathon tx1

Try this:
Switch the treadmill off and then on again.
Push the "minus" speed button and the "stop" button simultanuously.

If all is well you will now have entered the maintenance mode.

Next push the "plus" speed button and the "stop"button smultanuously.
Now you've reached the error mode.

Push the "plus" or "minus" speed button to browse the error codes untill you've reached "L er".
The push start to erase the message.

Turn the power off and then on again to restart the treadmill.

With any luck the error has disappeared and the treadmill will function again. If not.....you'll have to contact Kettler.

I have the same issue now. If you will solve it, please share

http://fitness.manualsonline.com/manuals/mfg/kettler/tx1.html

Check the code with Kettler's website in support.

The motor or the Motor control board is faulty. Can be the motor brush or the shorted igbt transistor in the motor contol board. If you wish to get some more details about treadmill repair then check the following link.
http://electro-medical.blogspot.com/

www.kettlerusa.com/fitness

Please recalibrate the machine with software calibration, for easy diagnose, troubleshooting and fix it
If the problem persist, you must need some basic parts or need service for repair. See hte block diagram attached.
God bless you

adjust the speed sensor, see the diagram attached, clean, and tight the wires connector very well.
2) Test the input voltage motor, if there are the motor need repair.
3) Tes the output voltage board, for input voltage motor, if there are NOT the board is faulty.l

After you did, RUN the software calibration for diagnose, troubleshooting,and fix it.

sincerely. GOD bless you

Use grease and check if any lock is there

Sounds like the function keypad has failed or worn out from excessive use of those buttons Call Kettler's customer support
KETTLER International Inc.
P.O. Box 2747
Virginia Beach, VA 23450 USA Tel (757)427-2400 Fax (757)427-0183 Email [email protected] or www.kettler.co.uk