Help error code 08, 36V Brainpower ctlr 350W Bafang

Hi

I have 350w bafang motor with 36v brainsmart controller. Since yesterday i am having this error code 08 and motor does not run normally.

However when intellligent identification cable (green) is connected and PAS assistance level increased motor speed increase.

Throttle never responds in any case.

1) where can i find user manual for this controller?
2)what can be the reason for this error?

Thank you

Brainsmart or Brainpower controller?

Sorry it is brainpower controller

We need a bit more info about how it failed. Was it OK when you parked it the night before, then didn't work in the morning or did it give some symptoms when riding? was your last ride wet? Did you disconnect or connect any wires? Most important of all, were the green self-learning wires connected when you first identified the fault?