Model #831297031 LIFESTYLER Treadmill

  • Lifestyler 8.0mph Treadmill
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walking belt 831297031 Lifestyler Lifestyler 8.0 mph, treadmill


Thank you for being Sears’ valued member and for contacting with your question about changing the walking belt on your Lifestyler treadmill model 831297031. I am so sorry the belt needs to be replaced. The treadmill parts normally come with the installation instructions. I am so sorry they were missing from the box. I will be happy to help you with this. 
SAFETY WARNING: Disconnect the power supply before beginning your repair to prevent the risk of electrical shock which can result in property damage, serious personal injury or even death. If you are not comfortable completing this repair, you can set up service at or by calling 1-800-469-4663 (1-800-4MY-HOME). 

I hope this answers your question. Thank you for choosing Sears, we appreciate your business. 

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Rachel Morgan -
Sears Technician
December 24, 2014

Treadmill motor makes a vibrating sound. 831297031


Hello glad to help.  Thank You for choosing Sears
I am sorry and do understand your frustration when there is trouble with the treadmill.
Glad to help out.   Im  looking at your Proform model number 831.297031.

I have read the manual and on this model it states on page 7, I would read that.   If you don't have the manual then you can download it free of charge at

The vibration you have is usually from a front or rear roller that is going bad.    Take a look at the rollers and if the bearing is going bad on either one then you will get this bad vibration and vibration noise.

Rear roller for model 831.297031

Front roller for model 831.297031 is no longer avilable.

If you have further questions please let me know.
Thanks for choosing Sears

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Larry L -
Sears Technician
February 12, 2014

When I power on the treadmill, the running/walking surface begins moving for approximately 2-3 seconds and then just quits. EEEE is then displayed. Is there a bad part?


The EEEE error code indicates the console is not receiving a signal from the speed sensor. The speed sensor is a photo switch and an optic disc located on the right end of the front roller shaft.

Disconnect power to the treadmill and remove the motor hood. Something might have moved out of position on the photo sensor and the optic disc. You might need to replace one or both of these parts.

107052 ASSY,SPEED E 1 10.49 10.49 831297031 RPDC - CWO ORDERS ONLY - LTD QTY AVAIL - FACT BIN = RPDC, QTY = 41 102955 SWCH,PHOTO I 1 8.99 8.99 831297031 RPDC/NPN - FACT BIN = RPDC, QTY = 9

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Jimmy K -
Sears Technician
February 05, 2010

is there a certin sequence for starting the tredmill

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julian -
March 24, 2013
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