M820 Bafang - LIGHTCARBON LCE930 Frame (lightweight)

[aledavi]

I run 34T good for climbing

hello.

thanks for answering.
I have mounted one with 34 teeth, I will try it this weekend.

The question was to know what gear ratio the Bafang M820 works best with.

greetings

 

[crackerman]

Can't seem to get power to my display. I have a second display and that won't power up either, so I don't think the issue is with the display. Battery is fully charged and I have a brand new main cables setup. What should I be doing to troubleshoot my issue? I don't want to install everything back into the frame until I know it's working. All cables are securely connected.

Thanks

 

[Goff]

Have you
a) Checked you have voltage at the motor
b) Connect the display you have mounted on the handle bars directly the cable going to the motor, hold the start switch under the the up / down toggles for a few seconds as it takes a while to start up.

 

[parnel bosch gen4]

Can't seem to get power to my display. I have a second display and that won't power up either, so I don't think the issue is with the display. Battery is fully charged and I have a brand new main cables setup. What should I be doing to troubleshoot my issue? I don't want to install everything back into the frame until I know it's working. All cables are securely connected.

Thanks

View attachment 148156 View attachment 148157 View attachment 148158

Where is speed sensor?

 

[Radolf]

Can't seem to get power to my display.

Disconnect the battery from the engine, reconnect it and then check if the display starts. If it starts the first time and then doesn't start the next time, the engine controller is most likely damaged.

===edit===

Also try disconnecting the buttons from the display and reconnecting it - does it start? try bending the pins in the plug. Try shorting the pins responsible for "POWER" directly at the display for 3 seconds.



If you have BESST TOOL, does it read the SN numbers of the controller and display?