Cause: Fan service counter comes when a cooling fan has reached the end of its estimated lifetime. "A8C0" typically refers to maintenance tasks related to the cooling fans, the code indicates which fan is to be replaced.

Check the auxiliary code. The code indicates which fan is to be replaced.

0: Main cooling fan
1: Auxiliary cooling fan
2: Auxiliary cooling fan 2
3: Cabinet cooling fan
4: PCB compartment fan

Refer to the hardware manual of the drive for fan replacement instructions.