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Jody WhiteAug 26, 2025
What to do if Eaton 9E 10000i beeps and shows A80E, A810, or F808?
- Aandrew66Aug 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.











