We have a Kettler Marathon TX 1 Treadmill. We have been using it for almost 2 years now, but suddenly the unit stop working and there is a message in the display "err 2". Was wondering what that means and whether I have to take the treadmill to the shop?
Hi Rendra,
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 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.
Btw...This error occurs when the belt is "pushed" by the runner. For example when you put weight on the handlebar and the push your feet backwards.
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