Hi,when i start the treadmill is run for few sconds thn error code E1 is displayed.what can be the problem for JK exer 8050 treadmill

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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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 the motor. This pickup comes from a magnet mounted on the front roller pulley and a speed sensor, or a problem with the magnet.Feb 29, 2016

E1 Error Codes - The Treadmill Engineer

treadmill-engineer.com http://www.treadmill-engineer.com > 2016/02 > e1-error...

Reebok ZR9 treadmill has E01 error on console since ...

JustAnswer https://www.justanswer.co.uk > electronics > ca4k2-ree...
Reebok ZR9 treadmill has E01 error on console since moving · 1. Turn the machine off at the mains socket for at least 30 seconds · 2. Turn the machine on at the ...

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  I have a Rebok ZR8 treadmill that displays an E01 error

  https://www.justanswer.co.uk > fitness-equipment > dwrp...
  It is the internal sensor tr the mainboard that has faulted. I am really sorry about this and you are going to have to return the unit to have these tested and ...
  
  

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Buy a new treadmill ;D

If you wish to get some details about treadmill error codes and repair; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/

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

Remove up and down liver moter cabel in mother board. And restart machine. Now ok e1 error.

sounds like the control board or motor is bad. you should replace both

I got dkcity treadmill model number- DK5320HRP ' When we press start button the motor does not turn and after few second an error E7 showing on the display. plaese if anyone can solve this proble

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

Good luck.

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