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Full Version: StairMaster 4000 PT
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Hi everyone
I have a StairMaster 4000PT and there is no  resistance on only 1 side .
Doesn't  anyone have any ideas  on what the problem might be 

Huh
Could be that the spring for pedal return has come off or the step chain has come off. It could also be an issue with the hub assembly. I would check those parts first.