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Mary PayneJul 29, 2025
What to do if my Aros UPS doesn't switch to standby mode?
- KKimberly HarrisJul 29, 2025
If your Aros UPS, connected to the mains, fails to switch to standby mode, indicated by the red block/standby LED not flashing, no beep sounds, and the display not lighting up, several factors could be at play. First, check for a missing connection to the input terminal and ensure the mains are properly connected according to the installation instructions. Secondly, verify the neutral connection. If the 1/0 switch behind the door is in the '0' position, set it to '1'. Also, ensure the SWIN switch behind the door is closed. In case of a mains power failure, confirm that power is restored and, if needed, switch on the batteries to power the load. Lastly, check for any upstream protection device interventions and restore the protection.
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