What to do if Eaton 9E10Ki beeps and shows A80E, A810, or F808?
- WWilliam LewisAug 27, 2025
If your Eaton UPS buzzer sounds continuously and the display shows code A80E, A810, or F808, the load applied to the UPS is too high. Reduce the load to within 100% of the threshold (or the user threshold in the case of code A80E). If the display shows a fault, remove the load and switch the UPS off and back on again.










