Question about Stairmaster 4400CL Stepper

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Stairmaster 4400cl has two problems

When stepping on the steps the screen will not turn on. And then now the steps do not resist. Does these things relate to each other. It work with my son this morning. Then coming home no power and steps no resistence. The guy that sold me this never gave a charger plug, does it have a alternator... Or should it be plugged in and charged. HELP. I want to work out.

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  • Anonymous Mar 14, 2014

    I have a used Stairmaster 4400cl, and initially it worked fine. About a month later, I noticed that the right pedal has a little more resistance than the left. It doesn't seem to be getting any worse, but the difference is annoying. Any ideas?

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When I step on my 4400cl stairstepper, I get a laser gun sounding noise that continues when I get off. I get some lights blinking on the console. The only way to get the noise to stop is to unplug the back of the console. Do I need a new mother board?

Posted on Aug 23, 2009

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You need a plug to charge it. it does have a battery

Posted on Jan 27, 2009

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Posted on Jan 02, 2017

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Schwinn srb 1700 will not read the speed or RPMs and the unit turns off after 5 minutes by itself. I was thinking of replacing the sensor but I can not find the part online. Any help would be great.


please see the video and lube the rollers bearing front+back too
2) Run the software calibration for easy diagnostic with sensor speed.and fix it.
Steps for Newer Style Console Calibration
1. Locate the calibration area on the rear or underside of the console (a hole, near the console's center, that goes through to the electronics board. (This hole should not have a screw in it.)
2. Insert a pencil (eraser end), into the hole and feel around for the cal button (will click when pressed).
3. Press the button 2 times (with the pencil eraser). The first click should show CL11 in the console, the second click should show CL21.
4. If the process was done correctly, and CL21 appears in the console, you are in "calibration mode." The next few steps consists of pressing buttons on the console and observing settings. This will not require any other tools.
5. Press ENTER. CL22 should display in the TIME window and (??) in the SPEED window.
6. Press ENTER. CL23 should display in the TIME window and (??) in the SPEED window.
7. Press ENTER. CL24 should display in the TIME window and (??) in the SPEED window.
8. Press ENTER. CL25 should display in the TIME window and (??) in the SPEED window.
9. Press ENTER. CL26 should display in the TIME window. You should then see the letter "E."
10. Press ENTER. You should see "SS" or "55" in the console.
11.Push the STOP/START button. For safety, at this point, you should step off, or be off, the treadmill.
12. Push the ENTER button. The walking belt should start to move, accelerate to maximum speed, then stop on its own.
13. When the belt stops, the incline should self test by raising to its highest incline position, then lowering back down to its lowest position.
14. Once the incline test is complete, push the POWER button 2 times. The unit should shut off and the console should go completely blank. If this happens, the treadmill is done calibrating and is ready for use.
If the letter "F" appears in the SPEED or INCLINE window when the power button is pressed 2 times, the treadmill is indicating a failure somewhere either in the SPEED or INCLINE (depending on the window the "F" appeared in). Troubleshooting the failure would be the next step.
God bless you

Oct 01, 2013 | Exercise & Fitness

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