Error Code 25

Mike8857

Member
Region
USA
City
03885
Brakes2..jpg

This error code is caused by the brake sensor failure.

I was attempting to close the gap between the handle bar and the brake lever. Based on research of the Tektro brake lever turning the nut #1 counter clockwise is supposed to move the lever closer to the handle grips. It did move the handle very slightly but then trying to move it back had no effect. Now I was getting Error Code 25 so I do more research and learn that the magnet sensor needs to be adjusted . The screw that should move the magnet away from the sensor is the 2mm screw #3. That's didn't eliminate the error code.


BrakeLever.jpg

What DOES cause the error code to clear is pushing the lever slightly away from the grips. I thought that by doing that the little switch at #2 is triggered causing the code to clear but that's not the case. If I push that little switch with a blade, it has no effect on clearing the code.

I'm stuck. What needs to be done to clear the err 25 code?

Thanks
 

Mike8857

Member
Region
USA
City
03885
So I've reached out to Wallke support and they have responded by asking for a video of the problem. This is what I sent them:


I look forward to hearing from. I'll post the results.
 

Mike8857

Member
Region
USA
City
03885
SOLVED: The brake sensor was not being depressed making the bike think that the brake was always on. Dead man's switch. Wallke support was great!

If this problem occurs while on the road, just unplug the sensor at #1 below. Brake will work but will not disengage the motor. Use the other brake.

ErrorCode25_Solution.jpg

The gap at #2 was too large so the handle was not compressing the sensor. The nut at #3 is a locknut. Loosen for a couple of turns. Then, INSIDE this locknut is the 2mm hex screw. Turning this hex will now increase/decrease the gap at #2. Here is the video provided by Wallke support.