Heidelberg GTO 52-2 4KW main motor problem

Dear Sirs, First of all I have to thank you all ,again for the help and the informotion each one of you is adding to this discussion. @ Good_part the replacment card we installed has the same part number as the faulty one. I will ask again the seller if is from a GTO or from other machine. Your photo looks like our...On the following photo the faulty one part number

 

@ Good_part is it a way to know which card is from which machine?
I mean except , what seller is saying? Plus, that blower is bidirectional regarding rotation ? Thanks a lot

 

they have same part number. one is for driving blower, one is for driving main motor. the difference is the programe version.

 

this is the problem which makes hard to identify. same part number. we have the experience that put the KLM4 module which is from the CD102 airstar unit , it didn't work.

 

I'll compare yours with mine to check.

 

"the difference is the programe version." Could you please elaborate a little about this. Which chip / IC is programmable?