AUMA Actuator fault troubleshooting

Hi!
Recently an AUMA MOV at my workplace has stopped working due to a "Position undefined" error.

This error showed right after a brief power cut, so I suspect some sort of surge damaged some electronic component.

When I tried to set new limits "missing sub assembly" error is shown. It was working fine before.


However, when I changed the display compartment form another working actuator this actuator started working, I didn't even have to set new limits.


Here is the actuator name plate


Actuator control unit name plate


Actuator motor name plate


Any advice on how to resolve this fault is appreciated
Thank you!