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

Goto to the parameter 05.41 and 05.42 and press reset button from the control panel by keeping Reset depressed for over 3 seconds to rest the counter.

05.41 - Main cooling fan.

05.42 - Aux. colling fan.