What does it mean when my Riello VST 1100 UPS display shows codes C01, C02, or C03?
- DDavid YoderAug 18, 2025
If the display of your Riello UPS shows one of the following codes: C01, C02, C03, it indicates that a remote command is active. If this is unwanted, check the status of the command inputs on any optional contact card.









