Question about RTO Keys Health Trainer 502t Treadmill

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I did the calibration test on my Health Trainer Classic treadmill and received an F in the screen saying failure. What needs to be checked to resolve this problem. When the treadmill calibration test was run the track elevated and declined however the belt did not run.

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describe how to tighten the belt on a tx 400 sportscraft treadmill.

Posted on Jan 06, 2010

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SOURCE: Elevation Will NOT go down after the elevation calibration

Unplug unit and remove motor shroud if you are savvy with a multi meter then try these trouble shooting procedure:
Perform and elevation calibration again, On the display, can you see numbers counting down and up and the treadmill is going up and down? If yes then the unit will proceed to work, if no when power is on, check on the lower board, on connector J5, do we have 5V DC between pin 1 & 3? If yes During Calibration, J5, between Pin 5 & 6, on the lower board, do we have 120V AC when treadmill is going up?
If Yes During Calibration, J5, between Pin 4 & 6, on the lower board, do we have 120V AC when treadmill is going up?
If Yes During Calibration, J5, between Pin 2 & 3, on the lower board, do we have DC voltage varying from 1.15 to 3.00? If any of the above is no then then the lower board will need replacing if all is yes then elevation motor needs replacing.

Posted on Aug 01, 2010

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he 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.
15.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.

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Press the Stop and the Speed Up keys down while inserting the safety key.
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Press either incline key and the incline will calibrate automatically.
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1 Answer


My name is Mike; I am a service technician for ICON Health & Fitness, the manufacture of the machine mentioned. While my comments on your problem are geared generally to assist, you are welcome to call our customer service line at 18009993756 for specific instructions if needed.
The first thing to do with any incline problems with a treadmill is run “calibration.” Calibration restores all settings (including the incline sensor in this case) to the factory specs. Instructions to run calibration on your individual machine are taped on the underside of the motor hood. See your manual for removal of the hood. While each machine has specific calibration instructions most new models made by ICON will have similar steps to doing it.
To calibrate the incline you will need to press and hold the Stop and Speed + buttons while inserting the safety key or magnet. Then let go of the buttons. This will enter calibration level 1 which lists some machine information and a console memory test. Press the Stop button 1 time. This will enter level 2 of calibration. To calibrate the incline you can press either incline buttons (either the up or down arrows) and your incline should go all the way up and then all the way down. If this works then take the safety key or magnet out; turn the power off, and unplug it for several minutes. (On a side not you will want to turn the power off and unplug your machine whenever you’re not using it.)
If this does not fix the problem then it can be more complicated depending on the model and motor involved. It can range from the console not sending a signal to a loose wire or jammed motor. If this didn’t fix the problem then I would recommend calling in for further assistance.
ICON Health & Fitness
Customer Care

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