Question about Stairmaster 4400 PT Stair Stepper

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My stairmaster has begun to squeak or chirp. It gets louder at higher resistance levels. Moving parts that I can see have been lubricated. Any ideas? Thanks!

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  • Stairmaster Master
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Replacement Parts for Fitness Exercise Equipment at SPORTSMITH

This sounds like either an alternator issue or the brushes in the alternator. I am going to attach some troubleshooting videos.
Stairmaster Stepper 4400PT Parts Chain Pedal Arm Fastener SPORTSMITH net

Posted on Oct 05, 2015

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jyackle5
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SOURCE: My Stairmaster 4600CL is stuck

What has happened is the control panel is bad and you need to replace it.

Good Luck

Posted on Jan 07, 2011

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Replacement Parts for Fitness Exercise Equipment at SPORTSMITH

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