devboy-greg
10 mW
- Joined
- Jan 10, 2020
- Messages
- 34
Waynemarlow said:Hi, we are having real problems with downed motors, well not really drowned but we are having probably the worst winter for mud and deep muddles that I can remember and the motors are having to put up with some real adverse conditions. Never the less we are two motors down with the same symptoms.
Symptoms are the motor starts to cut out after being through a deep puddle, the display still works and using the maintenance display, the torque sensor is still doing its stuff. The throttle also no longer works. The battery is not the problem as changing the battery doesn't solve it. You can turn the display off and then back on and it will reactivate the unit for a short period of time but within a few minutes the whole unit fails again. We've tried disconnecting the throttle and that's not the cause.
These units have been reliable in the dry but in the adverse conditions we're having there is a problem. Have any of you had similar problems ?
Speed sensor, will the unit operate if the speed sensor fails ( water and mud covered ) or does it perhaps time out if the sensor doesn't pick up a pulse ?
Any ideas would be appreciated.
I have the exact same issue whilst enjoying this wonderful UK winter.
Display working as expected, torque sensor values outputting as expected just no power from the motor, even with walk assist. It tends to happen towards the end of a ride when the battery is below 50% and everything is soaking wet.
I am thinking the problem may lie with the 6pin connector between the KT-LCD3 and the motor, it is very low down near the bottom bracket and gets completely soaked. Upon inspection I can see that water has penetrated the connector.
I am in the process of installing a new controller thinking this was the issue (I tested just about everything else!) but now I am unsure, so as a precaution I have removed the 6 pin connector by running a new 6 core cable from inside the motor up to the handlebars where I have split of the brake sensor wire and added a new Bafang 5 pin connector which I think is superior, but also in readiness for the new SW102 display I have ready and waiting once the firmware issues for SW102 display are fixed.
I plan to have everything up and running again over the coming weekend (some soldering left to do) and will report back.
If I hadn’t had the motor apart I would probably have tried improving the 6 pin connector weatherproofing with silicon and waterproof tape after drying thoroughly.