Question about Stairmaster 4400 PT Stair Stepper

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The left peddle has a periodic quick drop as if it is slipping or something. There is a low popping sound whenever this happens. The drop is very slight and occurs about once a minute.

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Why does one pedal drop on my Stairmaster Stepper but the other pedal operates correctly? Stairmaster Steppers, How to Troubleshoot when one Pedal Drops (Loses Resistance) while the Other Pedal Operates Correctly

  • If one pedal drops while the other operates correctly on your Stairmaster stepper, this problem commonly occurs when the drive sprocket on one side or the other becomes defective
  • Usually, when one drive sprocket fails, the other isn't too far behind
  • The best approach to resolve this problem is to install a new hub assembly

Why does one Pedal Drop on my Stairmaster Stepper

Posted on May 20, 2014


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Posted on Jan 02, 2017


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