Yeah I though that could have been a possibility too, but this happened halfway through a charge while the bike was stationary and the motor works fine with a Sabvoton.
It only cogs when controller is turned on. This is the display, think its the newer gen:madin88 wrote: ↑May 24, 2018 3:33 am
If the motor cogs without beeing attached to the controller than there is a short in the motor.
If it only cogs when attached to the controller (which is turned off) than FETs have a short.
If motor doesn't cog until controller is turned on, than there could be a problem with the driver boards.
As the PSU goes into protect there is definitely a short somewhere.
You can measure the coil harness for a short, but i don't think there is something wrong with it.
Do you have a newer gen controller with the revised power stage, or an older one (with the green color screen case)?
Thanks for the help, both of you.