My maxpro treadmill was wroking for about 6 mins before it jumped from speed 6 to 14 then completely shut down it is now showing an E1 message. i have read a few comments other people have made with answers suggesting the magnet has become loose if this is the problem where do i find the magnet and how do i fix it thanks craig

Question edited for clarity and its proper name.

E1 is a speed sensor error. Sometimes it just needs cleaning/

E1 Error Codes

The Treadmill Engineer http://www.treadmill-engineer.com > 2016/02 > e1-err...
Feb 29, 2016 - If the E1 error occurs after the belt starts to move for several seconds, the error code means that the system is not picking up the speed of ...

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jkexer e1 Questions & Answers (with Pictures)

Fixya https://www.fixya.com > Forum > Tags > jkexer e1
...jkexer polar 5090 treadmill and its coming up E1 any ideas please 1) You must adjut the speed sensor, clean it, tight the connector very well.see the ...
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Ask the manufacturer

Replacement Parts for Fitness Exercise Equipment at SPORTSMITH

True Treadmill Errors and Service Messages

• The True 600, 700, 725 and 750 series treadmills are equipped with built-in diagnostics and maintenance reminders that display either an error message or service message as they occur.
• The error messages that may be displayed by the built-in diagnostics are as follows:
  • E1:INCLINE
  • This means that the incline is moving when it has not been commanded to.
  • E1:MINIMUM
    • This is a minimum incline calibrating error that can be cleared by calibrating the incline.
  • E1:RANGE
    • This means the difference between the treadmills zero position and maximum incline is not sufficient.
  • E1:STALL
    • This means that the incline is not moving when it has been commanded to.
  • E2:OVERSPEED
    • This occurs when acceleration greater than 2.1 mph occurs as this is greater acceleration than anticipated.
  • E2:CAL
    • This means feedback cannot reduce or increase speed to target and error can be cleared by calibrating treadmill.
  • E3:EEPROM
    • This error happens when a data error is detected on the EEprom. The control panel needs replaced if this error occurs.
  • E5:SENSOR
    • This error occurs when there is no speed or RPM feedback detected from speed sensor.
• The service messages that may be displayed by the built-in maintenance reminders are as follows:
  • S1:LUBE
  • This service message displays when it is time for inspection of the deck lubrication system.
  • S2:CLEAN
    • This service message displays every 500 miles and is your prompt to clean the treadmill.
  • S3:MOTOR
    • This service message displays every 2500 hours and is your prompt to check the motor brushes.
• This information should help you understand the cause of the error message or code and how to take action to repair your True treadmill

Errors for True Treadmills E5 Sensor E2 Cal S1 Lube and more

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ERR1 indicates a speed issue. In this case, the motor speed as reported from the optic sensor differs

from the speed setting.

Analysis: Optic sensor signal issue -- Either the optic sensor signal is not right, or it is read incorrectly, or

the signal is not reaching the display.

clean the speed sensor, test for open or faulty. tight the connector very well. RUN the software calibration for easy troubleshooting and fix it.

see the diagram attached. and follow steps.

God bless you

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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.
    

i dont know about yours but ours has panel that will light codes to call company on. it is on bottom under lid for motor. you can check there.

The motor controller weakens over time because of the excessive amperage draw of the motor do to lack of lubrication (which wears the walk belt and walking deck).

Take an amperage reading of the motor it should be 2-3 amps with no one on it, with someone walking on it it should be around 6-12 amps. I would bet yours is elevated above 6-12 amps.The controller is dropping output because of the friction problem.

The first thing to try after testing the amperage is to lubricate the walking platform. Then retest and see if the amperage comes down and it doesn't shut off.

If it does then the next step would be to replace the walking deck. If the amperage still is up you may need to replace the walk belt second and finally if after replacing the deck and belt, if the unit is still shutting down replace the motor controller.

E1 error code : Unplug unit remove motor shroud and check the distance between the speed sensor and the flywheel and ensure that the speed sensor is properly attached to the motor frame. Check also speed sensor connections.
Unplug the electrical cord from the wall outlet and from the treadmill, wait 1 minute and turn the power switch on again. If treadmill recovers to normal operation, you may continue to use the treadmill.
Check the motor brushes either they worn or not sitting properly

Your problem might be that a magnet inside the treadmill has fallen off. Here's an illustrated guide that should make fixing it easy: http://fixmytreadmill.blogspot.com/2010/10/how-to-fix-treadmill-e1-error.html

Good luck.

E1 is a speed error. Try adjusting the speed sensor to approx. 1/8" from the front roller magnet and make sure the sensor does not hit the front roller. It will break it off.

Good luck.

Trimline treadmill starts up then code E2 comes up, and the display shuts down. 
Any ideas???