Question about Stairmaster Stepmill 7000 Pt

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I have a StepMill 7000 PT that has a problem of gaining speed. It's as though it doesn't have a clutch or brake. Is it the circuit board or alternator? Jerry Whetstone JWhetstone@altoona-iowa.com

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  • Stairmaster Master
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This video covers the electronic troubleshooting for a complaint of No Resistance on the Stairmaster Stepmill 916.Tools Needed: Multi Meter, Assistant for Testing Purposes
It is necessary to begin by removing the user's right side cover to gain access to lower control board and alternator for testing purposes.

  • Using your multi meter on the volts setting, you will place your black meter lead to the Ground test point on the lower board and place your red meter lead into the back of the cable connector where the brown wire is located. Have your assistant step onto the steps. Voltage should be present. If no voltage is present, check all cables. If cables check out, the console should be replaced. If voltage was present, it is time to move to the next test point.
  • Place your black meter lead to the Ground test point and the red meter lead to the Tach test point. Have your assistant step onto the steps. Voltage should be present. If no voltage is present, the alternator brushes should be replaced. If voltage was present, it is time to move to the next test point.
  • Next component to test for a no resistance issue is the load resistor. You will be testing for .5 -.7 ohms. Place the red meter lead to the white wire connected to the load resistor and the black meter lead to the black wire. If the proper value is not found when the load resistor is tested, it should be replaced.
You have now tested the entire electrical circuit. If the problem still exists, you have a mechanical failure or you should verify the results of your testing.


Troubleshooting Video for No Resistance on Stairmaster Stepmill SM916

Posted on May 21, 2014

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SOURCE: stepmill 7000 wont regulate speed

Check the blue wire to the alternator. Check all connections. the blue wire is the tach wire. no tach signal and you cant climb fast enough!

Posted on Sep 01, 2009

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