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I have a kalkhoff with a defective motor controller (see photos). I can’t find an exact replacement so I’m thinking of buying a generic controller. My questions are: Will any generic controller work? They generic ones I have seen have more wires than my bike seems to need, is that a problem...

Thanks to the help I’ve received on this forum, I’ve narrowed down the problem. I need a new Bafang motor controller. I have attached some photos. It has a lead coming out one end that ends in the battery connector. There are three leads coming from the other end. The thicker lead ends in a...

Sorry, dumb question. I really appreciate all your advice. I’m just a bit daunted at the thought of using a standard controller and replacing parts and rethreading wires. I may try to source a replacement for my existing controller first. Otherwise, do you know of anyone who would do the work...

Do you think it would work if I could find an identical controller and joined it to the existing lights wiring with a block connector?

One of the two thinner wires goes to the back light and the other goes into the frame.

Here are photos of the battery box and controller.

Thanks. I have a few questions. From my description of the problem, do you think a new controller would fix it? Where exactly are the controller connections? Where can I buy a new controller? (£70 seems very reasonable) Many thanks

Here are the connectors. The first is the controller connector (the box that the battery goes in) and the second is the motor connector.

Thanks for replying. I will get photos of the connectors but in the meantime, I just want to check that what I've been told by Kalkhoff is accurate as I haven't spoken directly to them, it's been via a dealer. This is what happened. The motor stopped working and the display showed Err 09 (see...

Hi I have a five year old kalkhoff groove F7 that stopped working. Based on my description of the fault, Kalkhoff said that the battery box and controller need to be replaced but they have stopped making them. Does anyone have any ideas about how I might get this fixed? Many thanks.