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Anonymous Posted on Oct 28, 2013

No power to the stepmill - Stairmaster Stepmill 7000 Pt

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  • Stairmaster Master 920 Answers
  • Posted on Jul 29, 2014
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Start by confirming power at the wall outlet. There should be at least 110v AC at the wall. Also confirm 12v DC output from the power supply where it plugs into the bottom of the machine. If you have power there, I would suggest pulling the side panel and checking the wires just behind the plastic panel, where the power supply plugs into the bottom of the machine. A very common issue with these machines is a simple loose ground wire on the grounding plate. If all of the previous checks provide the correct voltage, continue following power to the relay board and from there to the console. Your problem lies where the power stops. Video about Multimeter Testing

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Related Questions:

tip

How to Test the Relay Board on Stairmaster SM916 Stepmill

How to Test the Relay Board on a Stairmaster SM916 Stepmill Disconnect power from the machine.
Disconnect the main cable from the relay board J1 terminal. Main cable should remain disconnected for the duration of the relay board tests.
With the Power ON, place a jumper wire across the GND/BLK and RLY/RED test points. (Ensure jumper wire only makes contact with the designated test points.)
  • Verify that the Relay LED is lit. Remove jumper wire.
With the Power ON, place jumper wire across the +/WHT and FLD/BRN test points. (Ensure jumper wire only makes contact with the designated test points.)
  • Verify that the Field LED is lit. Remove jumper wire.
With the Power ON, place jumper wire across the +/WHT and with the other end touch the ALT/C, FLD/NC, and RES/NO.
  • Verify that the Field LED lights.
If any of these jumps fail, replace the relay board and or power supply.


Stairmaster SM916 Stepmill Relay Board Testing
tip

Too Much Resistance on Stepmill

The first step in troubleshooting too much resistance or constant resistance begins with the lower board. You will want to first verify that the Field LED is lit on the lower board. As shown in the video, the Field LED is off initially, when the steps are engaged it lights up, after about 5 seconds the light should go off. If the Field LED stays lit during a workout or after a workout is completed, this is a sign that the console is faulty. There is constant power being supplied through the console keeping a full load and causing no change in resistance. If the Field LED remains lit, the console needs replaced.



Too Much Resistance Troubleshooting Video for Stairmaster Stepmill SM916
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1answer

Belt slips off stairmaster stepmill

Replacement Parts for Fitness Exercise Equipment at SPORTSMITH

There are a couple of different belts available for this unit. The following link will take you to the parts available for your model.

Stairmaster Stepper 7000PT Stepmill Parts Transmission SPORTSMITH net
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1answer

Stepmill 7000pt is free spinning and has no resistance.

How to Test the Relay Board on Stairmaster 7000PT Stepmill How to Test Relay Board of a Stairmaster Stepmill 7000PT Disconnect power from the machine.
Disconnect the main cable from the relay board J1 terminal. Main cable should remain disconnected for the duration of the relay board tests.
With the Power ON, place a jumper wire across the GND/BLK and RLY/RED test points. (Ensure jumper wire only makes contact with the designated test points.)
  • Verify that the Relay LED is lit. Remove jumper wire.
With the Power ON, place jumper wire across the +/WHT and FLD/BRN test points. (Ensure jumper wire only makes contact with the designated test points.)
  • Verify that the Field LED is lit. Remove jumper wire.
With the Power ON, place jumper wire across the +/WHT and with the other end touch the ALT/C, FLD/NC, and RES/NO.
  • Verify that the Field LED lights.
If any of these jumps fail, replace the relay board and or power supply. Stairmaster Stepmill 7000PT Electronic Testing of Relay Board



The second link will take you to the service manual. Starting on page 13, you will find some more valuable information on the relay board. Last link will take you to a video on how to test the alternator
Video about Performing Jumper Test on Stairmaster Alternator
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