Hello. I have a problem with an altherma heat pump. The problems started with the fans, which I replaced, then pcb board failed. The model is ebhq011aa6v3. This has the same pcb as the rzqs125c7v1b. I am interested if the pcb can be reprogrammed and whether a service checker is needed. Besides, I would like the service manuals for the external unit, hydrobox and controller, for purchase. Thank you.