Jetson Haze - No throttle / motor response, headlight flashes 3 times

[dirtdivaca]

Was riding the haze bike #1 and it suddenly stopped working and headlights were flashing 3 times. (This is not the same common faulty throttle headlight flashing issue since that is continous on/off pulse flashing). I checked all wiring and didn't find any issues. Plugged in another throttle at the controller to eliminate any issue and headlight still blinks 3 times. If I disconnect the 5 hall wires from the controller, the headlight will flash 2 times so it makes me think it's not the hall wires? It's brushless 48V controller, model# HAZE-UL.

Here's the kicker, I have another working Haze bike #2 which I also connected it's hall sensor and 3 motor phase wiring onto the problem bike #1 to see if that would work assuming the motor was bad. Bike #1 still had 3 flashing lights. I put bike #2 back together and it now also does the 3 flashing headlights. It's almost like I put both bikes into some type of error debugging mode and I can't get out of it.

UPDATE: I also have a Brainpower aftermarket controller which includes the S866 display and separate throttle connected. I'm able to get the throttle and motor to spin so it tells me something is wrong with the OEM controller so for now I'll just rewire everything on the brainpower and use that instead. I'm not sure what caused the issue or if I'm going to end up breaking the new controller as well. If anyone has any ideas what I should check, let me know.

 

[neptronix]

It's always the control electronics on these things!

 

[amberwolf]

If it's a hubmotor, the most likely thing is there was axle wiring damage, an internal short from hall sensor signals/etc to the phases, and that blew up stuff in the controller that reads the halls.

The brainpower might work sensorlessly and thus still work even with this problem if it's hall lines are protected enough (most controllers don't seem to be, and thus can be destroyed when this kind of wiring fault happens).