Question about Stairmaster Exercise & Fitness

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Stairmaster 4000 crazy console

After working out for about 16 minutes, my SM 4000pt console flashes all crazy and the machine loses resistance. What's my problem?

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Check all connections from power source in inside the cover where alternator is to upper display then if the problem still continues I suspect your upper console is going south. Call National Gym Supply @ 1-800-496-7278 they can either repair it or may have a exchange board for you.

Posted on Mar 13, 2010

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Getdaria, did you get this fixed? I did talk to National Gym supply, I sent in my console, I bought a new power source. Over 200 bucks. And today, got back on it. SAME THING. So I am hoping that you figured it out--did you?

Posted on Mar 31, 2014

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Tip

How do I test for continuity of the gray cable on my Stairmaster 4000PT?


Testing for Continuity of the Gray Cable on a Stairmaster 4000PT
  1. First disconnect the grey cable from the back of the console and UNPLUG YOUR MACHINE from the wall.
  2. If your cable has a 6-pin round connector, you will need to check pin sockets #5 (black wire), #3 (blue wire), #2 (brown wire) and #4 (white wire) with your ohmmeter for continuity in each pin. Should get continuity from all if cable is good.
If your cable is a 9-pin cable, you will need to check pin sockets #5 (blue wire), #3 (black wire), #2 (brown wire) and #4 (white wire) with your ohmmeter for continuity in each pin. Should get continuity from all if cable is good.

http://www.sportsmith.net/faq.aspx?did=36FBE6B5-B902-41E0-891D-11B48E2E92ED

on Mar 11, 2015 | Stairmaster 4000PT Stepper

Tip

Keypad Test for Stairmaster 4000PT Stepper


Preform this test if you are having trouble entering data into the console. If you cannot enter the DIAGNOSTIC code due to an inoperable keypad, replace the console.
  1. Press [2] to start the test.
  2. The display LEDs will light up in an L-shaped formation, representing the keypad matrix. Pressing a button on either the exercise program keypad or the function keypad will light an LED within the outline on the display that corresponds to that button's position on the console.
  3. Firmly press each button. If the LED corresponding to the button you pushed does not light up, the keypad is bad and the console should be replaced.
  4. Press [CLEAR] to test the LED and then end the test 10 seconds later.

How to Perform Keypad Test on Stairmaster 4000PT

on Mar 10, 2015 | Stairmaster 4000PT Stepper

1 Answer

StairMaster 4000PT console gets pixalated, machine freezes after 15 minutes of working out


This really still sounds like a console issue. You can check your load resistor just to make sure that is not causing an issue. It should be labeled as to what ohms it is rated as. Simply unhook it and, using a multi-meter, check the ohms. It should be +or- 10%. I am attaching a link to a video on how to use a multi-meter just in case.

Video about Multimeter Testing

Mar 31, 2014 | Stairmaster Exercise & Fitness

1 Answer

Why does my stairmaster 4000pt randomly shut off


Replacement Parts for Fitness Exercise Equipment at SPORTSMITH

Check continuity of the console cable. If this checks out, open the console and look for any corrosion on the circuit board. If this seems to be the issue, you will have to find someone to repair the circuit board as they are no longer available.

You can find more parts for the 4000PT at the following link: Stairmaster Stepper 4000PT Parts Power Supply Spring Hub SPORTSMITH net

Mar 13, 2013 | Exercise & Fitness

Tip

Is there a Quick Test I can do when there is No Resistance on my Stairmaster...


The following test will help to determine if the cause of no resistance on your Stairmaster 4000PT stepper is the console. By performing the following test, the console is eliminated from the electrical circuit. If resistance is present when the test is performed, the console is bad. Paper Clip Trick
  1. First UNPLUG YOUR MACHINE from the wall, then disconnect the grey cable from the back of the console.
  2. If your cable is a 6-pin round connector or a 9-pin square connector, using a paper clip formed into a "U" shape, insert the ends of the paper clip in the pin sockets #2 and #4. Then you will need to plug the power cord back in and start stepping. You should experience full pedal resistance.
  3. If there is still no pedal resistance, UNPLUG YOUR MACHINE from the wall and disconnect the wire from an end of the load resistor so that there is no wire attached to that end. Then plug the power cord back in and perform the paper clip test again. If resistance is present, the load resistor needs replaced. If resistance is not present, either the gray cable or the alternator is bad.

http://www.sportsmith.net/faq.aspx?did=88B6E8F1-92F8-4B60-8B2E-47911ADB84AA

on Mar 10, 2015 | Stairmaster 4000PT Stepper

1 Answer

Need battery, 4000PT


If you have a 4000PT, chances are, you do not have a battery. This machine requires and external power supply. These can be viewed on our Website. Stairmaster Stepper 4000PT Parts Power Supply Spring Hub SPORTSMITH net

Oct 11, 2012 | Stairmaster Remanufactured (4000PT)...

1 Answer

Stairmaster 4000pt pedal slips


Why does one pedal drop on my Stairmaster Stepper but the other pedal operates correctly? Stairmaster Steppers, How to Troubleshoot when one Pedal Drops (Loses Resistance) while the Other Pedal Operates Correctly
  • If one pedal drops while the other operates correctly on your Stairmaster stepper, this problem commonly occurs when the drive sprocket on one side or the other becomes defective
  • Usually, when one drive sprocket fails, the other isn't too far behind
  • The best approach to resolve this problem is to install a new hub assembly
Why does one Pedal Drop on my Stairmaster Stepper

Jul 07, 2012 | Stairmaster 4600PT Stepper

1 Answer

I have a Stairmaster 4000PT. When using it, the left pedal will suddenly drop to the floor. Opened the case. The spring is intact. I used it with the case open and didn't notice anything different...


Stairmaster Steppers, How to Troubleshoot when one Pedal Drops (Loses Resistance) while the Other Pedal Operates Correctly
  • If one pedal drops while the other operates correctly on your Stairmaster stepper, this problem commonly occurs when the drive sprocket on one side or the other becomes defective
  • Usually, when one drive sprocket fails, the other isn't too far behind
  • The best approach to resolve this problem is to install a new hub assembly

Why does one Pedal Drop on my Stairmaster Stepper

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2 Answers

Stairmaster 4000pt pedals lose resistance during workout


THEIR IS A TRANSMISSION ASSEMBLY IN THIS UNIT THAT CAN FAIL.. TAKE THE SIDE PANEL OF INSPECT THE ALTERNATOR BRUSHES THEY MAY BE WORN THUS ALSO CAUSING THIS PROBLEM THE LATTER WOULD A CHEAPER REPAIR

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