A year or so back I bought an electric cargo bike online. The company I bought it from is since then no longer in operation. Since a few weeks every now and then the display shows a wrench symbol and the number 30. At the same time the battery charge indication indicates an empty battery. The bike is still normaly operable. I think this is some sort of error code.
Unfortunately I don't have any manual for the electric components of my bike, so no way to find out myself. I visited a few local bike repair shops, and no-one is familiar with the brand of electric assistance my bike has, and are unable to provide any help.
The label on the electric unit states "Bafang", which I guess would be a Chinese brand.
Does anyone know what this error 30 could mean?
Doing some more googling I identified this part as the Bafang DP-C07 display unit.