Replacement motor controller

[Larkin]

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?
They vary in price a lot, so what is a good make?
Although I’m willing to have a go at replacement, I’m no electrician so can anyone recommend someone to do the work?

 

[sjpt]

Probably worth posting exactly which model/year the bike is.

 

[Nealh]

That controller is a Bafang controller so any generic one won't be compatible with your display as they use comm's protocols between each other though some parameter's may work. Also if your bike uses a torque sensor it needs to be a specific TS controller.
As Sjpt has said please be more specific about bike model.

What has led you to the conclusion the controller is at fault ?

 

[vfr400]

For those that have forgotton, this is where we got to:

Help! - Failed kalkhoff

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.

www.pedelecs.co.uk