Hello,
This is my first post, so I apologize if I am not in the right forum.
I am currently facing an issue for which I would need the help of the community.
Six months ago I installed a Tongsheng TSDZ2 mid-drive, the coaster brake version, on my bike and since then I rode about 500 km without any issue. Until today, when after a ride of about 20 km at noon, during which the motor worked perfectly, I let my bike at rest in the garage for a couple of hours until in the evening when I went out for a ride again, but the motor started to behave erratically.
First I noticed that the lights did not turn on anymore.
Then, in the 1st level of assistance (as I usually use), I got full thrust as I was in the 4th. So that I switched off the assistance (I put it on the OFF position), but I still got full thrust from the motor. The situation started to become quite worrying and unsafe as the slightest push on the pedal triggered a full thrust response from the motor despite the fact that the assistance level was put on OFF.
I tried several things trying to figure out what the problem might be:
- I switched the assistance levels up and down while ridding
- I completely switched off and on the entire system several times
- I disconnected the battery and I waited 5 minutes before reconnecting it
- I disconnected the speed sensor and I let it disconnected
- I disconnected the lights and I let them disconnected
- I disconnected all the cables and I connected them again
Nothing helped. The motor continued to push at full thrust whatever I did. (of course not when the entire system was completely switched off). And the lights never turned on since then.
I mention that I am aware of a couple of things that are specific to this motor:
- not to put torque on the pedal during the initialization of the system when switching it on
- the correct distance of the magnet from the speed sensor
Now there was some symptoms that I started to notice in the last period, but I do not know if they could be linked or not: 2 weeks ago I install front and rear lights (I missed a cable so far and it took months for it to arrive from the supplier) and I noticed that sometimes they refused to turn on. I thought there might be an imperfect contact, so I used to disconnect and reconnect the lights cables, which eventually solved the problem with the light. But except this, the motor worked perfectly, until today.
Did someone else experience the same issue?
Thank you in advance,
Razvan
This is my first post, so I apologize if I am not in the right forum.
I am currently facing an issue for which I would need the help of the community.
Six months ago I installed a Tongsheng TSDZ2 mid-drive, the coaster brake version, on my bike and since then I rode about 500 km without any issue. Until today, when after a ride of about 20 km at noon, during which the motor worked perfectly, I let my bike at rest in the garage for a couple of hours until in the evening when I went out for a ride again, but the motor started to behave erratically.
First I noticed that the lights did not turn on anymore.
Then, in the 1st level of assistance (as I usually use), I got full thrust as I was in the 4th. So that I switched off the assistance (I put it on the OFF position), but I still got full thrust from the motor. The situation started to become quite worrying and unsafe as the slightest push on the pedal triggered a full thrust response from the motor despite the fact that the assistance level was put on OFF.
I tried several things trying to figure out what the problem might be:
- I switched the assistance levels up and down while ridding
- I completely switched off and on the entire system several times
- I disconnected the battery and I waited 5 minutes before reconnecting it
- I disconnected the speed sensor and I let it disconnected
- I disconnected the lights and I let them disconnected
- I disconnected all the cables and I connected them again
Nothing helped. The motor continued to push at full thrust whatever I did. (of course not when the entire system was completely switched off). And the lights never turned on since then.
I mention that I am aware of a couple of things that are specific to this motor:
- not to put torque on the pedal during the initialization of the system when switching it on
- the correct distance of the magnet from the speed sensor
Now there was some symptoms that I started to notice in the last period, but I do not know if they could be linked or not: 2 weeks ago I install front and rear lights (I missed a cable so far and it took months for it to arrive from the supplier) and I noticed that sometimes they refused to turn on. I thought there might be an imperfect contact, so I used to disconnect and reconnect the lights cables, which eventually solved the problem with the light. But except this, the motor worked perfectly, until today.
Did someone else experience the same issue?
Thank you in advance,
Razvan
