CONSOLE HAS NOT LIGHTS

Check this link for the manual of this treadmill:

Reebok 8400c Treadmill Manual

Treadmill Lights Up But Fan And Belt Wont Run

go HOOD cover motor follow the steps or ready your owner manual, and RUN the software calibration for easy diagnostic and fix it.


The
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

please run the Software calibration see the instruction.
GOD BLESS you
The 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.

Step 1:

RUN the calibration software . and fix it. God bless you



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.

Step 2:

you must RUN the software calibration, for troubleshooting and fix it.
See the steps.

The Steps fhor 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
    

    1. F" appeared in). Troubleshooting the failure would be the next step.
       

    
    
    
    

Step 1:

test the speed sensor,m for open or faulty, clean it, and tight the connector. see the diagram attached.
However follow the steps for RUN the.s calibration for fix it.
God bless you

Step 2:

The 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.
    

RUN the software calibration for diagnose, and fix it.
God bless you

The 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.
    

1) Lube the deck belt, maybe you have a worn deck belt, use 100% silicones or wax, check your instr. manual
2) Lube the rollers bearing with wd-40 very well
3) Test the drive belt motor, for cracking or worn belt
4) Test the input voltage motor, if there are the motor need repair, please go to my personal TIPS for motor help
5) Test the output voltage board, for input voltage motor, if there are NOT the board is faulty, see the block dia
God bless you

It is very unusual to have no incline or walking belt operation..
Try entering diagnostic mode and do a calibration. The instructions are found under the motor cover on a tech sheet.
1: with the safety key removed, press stop and speed up simultaniously.
2: Attach the magnetic safety key.
3: press stop 1 time.
4: at this time, by pressing the incline up, the incline should calibrate, going up to maximum then back to minimum..
5: press the speed up key, you will see the numbers on the console increase. The machine should start moving the walking belt around 25-30 on the display. At 85 the belt should be running at maximum speed.
6: press speed down, the machine should stop.
7: remove the safety key. Now replace the safety key and try the machine again.If any of this procedure didn't work, I would suspect a defective console. Otherwise, the motor controller may need replacing.
Good Luck

The standard calibration procedure to calibrate an Icon treadmill is done by holding down the speed up and stop keys while inserting the safety key or putting the key in place (if magnetic). If your keypad is not responding, because your treadmill keypad has failed or the console computer has failed. In these cases, the keypad can be replaced in limited instances or the console has to be replaced.
Now if you are able to get in calibration mode then Press the Stop key one time. The Time window should read EP:2P. Some newer models may also say FP, Pass, This means that it passes the EPROM test. If it shows ff or 2f your upper console will need to be replace.
Next step if eprom passes: Press either incline key and the incline will calibrate automatically.
DO NOT STAND ON THE WALKING BELT.Press the Speed Up key and hold it down until 85 is shown in the Distance window (some models may show the 85 number in another window). if you get the the number to 85 and the belt does not move , on the lower board you will see a like flicker that would be the speed control this tells you that the upper console and terminal cable is good ,but lower board defective.