Where do I find a manual for a evo8000 healthstream treadmill?

Your model doesn't seem to be listed on the manufacturer's website. Contact them directly for additional support.
http://www.healthstream.com.tw/index.php?act=contact

go please to www.fitness.manualsonline.com or www. retrevo.com

and download for free.

God bless you

please use the next website
http://www.healthstream.com.tw/upload/2011/01/20110128111522.pdf and fix it.
God bless you

see the video and proceed according. lube the rollers bearing front+back +drive belt motor test , and replace the belt if necessary.\\God bles you

1) Lube the shaft and gear from elevation motor
2) Tight the connection motor very well.
3) Adjust the potentiomenter from elevation motor
4) Measure the voltage input.
5) Try to RUN the software calibration for diagnose, and troubleshooting see the block diagram.
God bless you

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

Hope this is what you need.http://www.healthstream.com.tw/upload/2011/01/20110128111522.pdf

If you need further help, I’m available over the phone at https://www.6ya.com/expert/matt_8dbc24bf722649ac

You will need to check the speed sensor for proper alignment and function. it should be located near the front roller or mounted on the motor. It should be within a credit cards width of the magnet or toothed wheel. If properly adjusted check with an ammeter to see if it is opening and closing by manually spinning the front roller or motor flywheel. If it isn't replace the sensor. If it is functioning make sure you are getting 5vdc to it across the wires. If you are not replace the upper control board(console). If you are getting the proper voltage then replace the lower control board(motor controller).

if you take the motor shroud off the front of the treadmill, you'll find wiring and connectors. check them and make sure none are loose, cracked, corroded, pinched, rubbing, or frayed and touching metal. also check under the display, there should be an access panel you can unscrew and remove to check the connections in there as well.