My Smart UPS Modular Ultra has an Unknown UPS internal error (1568-00B0) or Unknown UPS internal error (156A-00B0) alarm.

Purpose:

If you update your UPS to FW 15.0 or later and you have an SBU (Service Bypass Unit) connected, you may see an Unknown UPS internal error (1568-00B0) or Unknown UPS internal error (156A-00B0) alarm.

Product Line:

Smart UPS Modular Ultra

Environment:

All models, all serial numbers on UPS Firmware 15.0 or later with an SBU (Service Bypass Unit) connected.

Resolution:

UPS Firmware 15.0 and greater supports new events for the SBU switch positions.  In order to see the correct alarm messaging on the display and NMC, please upgrade the NMC/Display to the latest firmware.  See below for FAQs on the different ways to upgrade that firmware.

How to Install the Smart-UPS Modular Ultra NMC/Display Firmware using the USB Port
Web link - https://www.apc.com/us/en/faqs/FAQ000261841/

How do I update my Smart-UPS firmware using the web interface of my Network Management Card?
Web Link - https://www.se.com/ca/en/faqs/FA170679/

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