Hello we've got at Kettler Track Performance (art. no. 07885-300) It now say's both ER 91 and ER 15. Is there something I can do?

then return it w/receipt to point of purchase

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.

yup,thats what you say

After 5 seconds stop the treadmill and err 91 what is the problem , which parts has to replace. Speed censor is good when checked with another pcb.

Hello, we have the same problem. Did you find a solution yet?

this a problem with the elevation motor. You are working with the treadmill without put in level.
You need LUBE the gear+shaft see the picture. But most importante adjust the POTENTIOMETER a little see the diagram attached.
God bless you

Hi chakitasara,
Check out these websites and see if one of them has one that will fit your needs.
http://www.halogensoftware.com/products/halogen-eappraisal/employee-evaluation-forms/
http://www.amsterdamprinting.com/Category/Performance/298/Default.aspx
http://www.docstoc.com/docs/8675116/Employee-Performance-Evaluation-Form
Hope this solves your issue...

I have the same problem, it developed in the past few days. I've written to Kettler for assistance but not received a reply yet.

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.