On/ off Switch and assist level switch not working

[Fraas]

Hi,
After some noise in my BBS02 motor i changed some bearings, did new lubrication and now sounds good again.
But after the repair, i experience some strange things. The BBS02 is switched on automatically when i press the switch on the battery itself. I cannot power it down with the on/ off switch and cannot change the assist levels (its stuck in 1). I have never had any issues with the display or whatever (C961).
Does anyone has a clue what can be wrong? For the rest the motor is working fine (throttle, and pedel assist in 1)
Thank you in advance!

 

[tomjasz]

You damaged the PAS PCB?

Bafang PAS Circuit for BBSHD or BBS02

PAS circuit with connector. Plugs directly into controller lead.

california-ebike.com

 

[Fraas]

Hi Tomjasz,
It could be that i damaged the PAS PCB / or that grease came onto the PCB.
But, is it possible when you damage the PAS PCB, that for example the on/off switch is not working anymore, and cannot switch between pas levels?

 

[tomjasz]

Sadly the only way I can sort is by trying a replacement. But yes it could create electronic gremlins.

 

[Fraas]

I'm going to replace it.
Thank you very much for the suggestion. I will let you know the result!

 

[Fraas]

Hi Tomjasz,

You are the best! I cleaned the PAS/ PCB and now its working fine, I'm very happy! I put to much grease in the motor and came onto the PCB.
I really did not expect the PAS to be the problem, i almost started to replace other parts.

 

[tomjasz]

Like a broken clock, right twice a day. My BBSxx motors had a lot of gremlins to come to terms with. Once done I hope we don’t lose the current simplicity to the new all in one kits.

 

[Fraas]

Yes you are right. With the canbus and meer software it will be more complex in the future i think.

 

[Gionnirocket]

Like a broken clock, right twice a day. My BBSxx motors had a lot of gremlins to come to terms with. Once done I hope we don’t lose the current simplicity to the new all in one kits.

Santo Bafango strikes again!