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Taylor Chavez MDSep 10, 2025
What does it mean when my Riello UPS display shows the code A11?
- SSabrina SummersSep 10, 2025
The code A11 on the Riello UPS display indicates that the input relay is blocked. This fault should not cause any immediate malfunctions. However, if the issue recurs upon restarting the unit, it is advisable to contact the support service center.