Model #831295350 Proform treadmill

  • Treadmill Assembly
    3 Results

Question and Answers


My Proform 400GI treadmill makes a loud high pitch noise at speeds up to 3.1, possible solutions?


Disconnect the power to the treadmill. Remove the front hood over the motor area and remove the drive belt from the motor pulley.

Walk on the belt and try to create the noise. If you can create the noise this way hopefully you can determine what is causing the noise.

If you can't create the noise without the motor, connect the power and start the motor with the drive belt off. If the noise is coming from the motor, you should be able to tell.

If you don't get the noise this way, inspect the drive belt for cracks, stretch marks, etc. The drive belt might be the source of the noise.

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Jimmy K -
Sears Technician
November 11, 2009

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