SM 102 heidelberg dynamo unit rotate water rollers does not work

Hello, I hope someone can tell me.
headleberg SM 102 engine, in dynamo units 1,2,3,4, to rotate the water rollers, they don't all work when the engine is running. What are the causes?
Thank you.

 

hello dear sir, what does the machine display as a fault or malfunction?

 

Thankyou for the response.
the cause of the problem is already known.
Thank you in advance.

 

That's great that you found the problem. But don't you think that it'd be nice to have the decency and let us know what the problem was???

 

Perhaps hak card was not inserted correctly .