Andrew.Robinson
1 mW
Hi,
I've got a 2017/18 Voltbike Yukon 750 - Fat ebike with 500W motor (750 W peak).
A few weeks ago - as I was sitting on the bike I heard a small noise and after that the hub motor in the rear wheel stopped providing torque when I pedalled.
Some symptoms:
Controller is LSW784-45 3M X1703003288.Nanjing Lishui Electronics 48V, 20A Max, 10A rated, low voltage 41V, throttle voltage 1.2V - 4.4V.
I should also mention that the throttle has not worked in years; neither have the brake sensors - but the ebike worked fine otherwise.
I'm assuming that, if another controller can make the motor turn, the problem is not in the motor. So it is either a controller issue or wiring connections?
Any suggestions where to get a replacement controller? If I can get a cheap one, then at least I can try switching it out and see if that fixes the problem.
Any other suggestions?
Thanks
I've got a 2017/18 Voltbike Yukon 750 - Fat ebike with 500W motor (750 W peak).
A few weeks ago - as I was sitting on the bike I heard a small noise and after that the hub motor in the rear wheel stopped providing torque when I pedalled.
Some symptoms:
- Battery fully charged; display powers up as normal; display does NOT show an error when I disconnect rear motor cable
- When using "walking mode" - motor vibrates and tries to turn; if I lift up the rear wheel to let it spin, it stops vibrating or trying to turn
- Usually does nothing when riding in pedal assist mode, but on one occasion it started providing power, but vibrating heavily before cutting out again
- Dissassembled motor - planetary gears look good, some rubbing between speed sensor and magnet, but currently spins freely
- Tried running hub motor from a separate e-bike that had a smaller motor/controller and wheel spun fine with no noise - UPDATE - also tried running the separate e-bike from the controller and it did not work. However, the controller does run my motor when it is not installed in the wheel
- Removed controller - tested for faulty MOFSETS and all have same resistance levels - no shorts; inside controller looks fine
- tested continuity on green, yellow, blue power wires and they are good; didn't try remaining 6 smaller wires (I'm not sure how to do that)
Controller is LSW784-45 3M X1703003288.Nanjing Lishui Electronics 48V, 20A Max, 10A rated, low voltage 41V, throttle voltage 1.2V - 4.4V.
I should also mention that the throttle has not worked in years; neither have the brake sensors - but the ebike worked fine otherwise.
I'm assuming that, if another controller can make the motor turn, the problem is not in the motor. So it is either a controller issue or wiring connections?
Any suggestions where to get a replacement controller? If I can get a cheap one, then at least I can try switching it out and see if that fixes the problem.
Any other suggestions?
Thanks