Need a part - power supply 4pin for stairmaster 7000pt

Question edited for clarity.

Lots of information here

https://www.google.com/search?q=Stairmaster+7000pt.+Why+don%27t+stairs+rotate

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If the buttons are not reacting, it could simply mean that the overlay/keypad is worn out. The following link will take you to a few of the options available for your model. Stairmaster Stepper 7000PT Stepmill Parts Transmission SPORTSMITH net

Replacement Parts for Fitness Exercise Equipment at SPORTSMITH


Stairmaster Stepmill SM916 Troubleshooting Video for No Power to Console

Check the following video out for some troubleshooting steps regarding this issue.

Stairmaster Stepper 7000PT Stepmill Parts Transmission SPORTSMITH net

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

Replacement Parts for Fitness Exercise Equipment at SPORTSMITH

This could be caused by worn alternator brushes. The following link will take you to a video on testing the alternator. If the alternator checks out, you may be dealing with a faulty display console.

Video about Performing Jumper Test on Stairmaster Alternator

First thing you'll want to do is check the alternator brushes. Here's a link to the different types offered for the Stairmaster 7000PT:


Repair Parts for Stairmaster Equipment Batteries Springs Belts Chains...


If the brushes look like they are in good condition you can also test the relay board. This link will take you to the procedures for checking the relay board:


Stairmaster Stepmill 7000PT Electronic Testing of Relay Board

The belt may need to be replaced. Over time they do stretch out.

Stairmaster Stepper 7000PT Stepmill Parts Transmission SPORTSMITH net

most likely your gear reducer (transmission ) has stripped and wii have to be replaced . call glide fitness products in santa ana california 1 866 637 4600. they will sell you a new one for about $180 or send in your old one and they will send you a rebuilt one for about $75 note shipping is extra

If you have a Stairmaster Stepmill 7000PT that has an older style console with the red LEDs and you want to upgrade to the newer, console with the blue LCD; the parts necessary for this upgrade include the console and the console cable.

Stairmaster Stepmill 7000PT Console Upgrade
C40 Console Repair Video for Stairmaster Steppers