Himo c26 error 30H

[fumbo]

Hi all,
I had a 30H error on my e-bike (Himo c26). The display showed a 30H error, I could not turn on the light, although the display showed that it was on. Also, the electric motor did not work. The battery was 100% full. I disconnected all the cables except for the display and the battery. It was still showing error 30H. I tested with components from another same Himo c26 bike and came to the conclusion that the cable / electronics for brake detection is faulty. The display and speed lever as well as the front and rear brake cables are connected to this cable. Only when I released both brake levers (they were not attached to the brake levers) did the 30H error disappear and the light started working normally.

 

[fumbo]

The electric motor is working. When testing, the 30H error no longer appeared. I did additional testing, turned off the display, braked with the brakes and turned on the display at the same time. It showed me error 25H. When I released the brakes, the error disappeared. Error 25H is therefore caused by the brakes. Error 30H in various simulations no longer appeared. What I also noticed was that the brakes were not working well, otherwise it was very difficult for the brake line to go back, and I lubricated it, now that's fine. Maybe it was a problem with the brake cable that it was showing 30H.

 

[fumbo]

I am adding more pictures.