New TSDZ2 Troubleshooting Assistance please

[TenMile]

Hey all,

I have 8 or so TSDZ2 motors and it looks like one of them is exhibiting some unusual behaviour. The motor starts up fine and when I initially start pedaling, the assistance kicks on as you would expect. As soon as I stop pedaling and then start again, the motor no longer provides any assistance. The display sometimes will lock-up and display 99.9 or 0 and simply not respond. I should note that I have experienced this same issue with both the stock firmware and the OSF.

So far, I have tried the following:
- repositioned the speed sensor closer to the magnet
- I have flashed the OSF (a few different times) using version 20
- have tried adjusting the pedal torque ADC and ADC offset

With all of the other motors, I have the OSF running and have used the same configuration on this motor as I have successfully used on the others. I believe the motor may be defective but just wanted to get a second opinion on some things I could try to correct. The motor is brand new with zero kms on it so I could return it to our supplier.

 

[TenMile]

Continued my troubleshooting. Swapped in another new motor and found the same issue. Swapped in a new display and no joy... unplugged the brake sensors and that seems to have stopped the issue. One of the supplied levers must have a faulty sensor that's causing some issue.

 

[Big_Daddy]

Continued my troubleshooting. Swapped in another new motor and found the same issue. Swapped in a new display and no joy... unplugged the brake sensors and that seems to have stopped the issue. One of the supplied levers must have a faulty sensor that's causing some issue.

I had similar problem which was resolved by reversing the speed sensor magnet the other direction from its present installation. This happened on two separate bikes with TSDZ2 installed and both corrected by simply turning the sensor magnet around howbeit positioned properly with respect to the alignment to the sensor mounted on the frame.