Alarm goes off at midnight every night

[EMS_MT]

The alarm on my BACK-UPS 600 has gone off every night at midnight for the last several nights. I have 2 others in the house that have not alarmed. Last night I unplugged everything from it and unplugged it from the wall, and the alarm still went off at midnight. It also takes several tries of pushing the power button to mute the alarm or turn the unit off. Any ideas what is going on and how I can fix it?

[Teken]

Install the APC Power Chute Personal Edition (PCPE) software and connect the UPS to the computer running PCPE.

Report back what PCPE indicates is the active fault / error and relay the same here with a screen capture that is visible on the APC Forum.

Please review the user manual I linked so you can compare the LED Status / Beeps to your current problem:

https://download.schneider-electric.com/files?p_enDocType=User+guide&p_File_Name=BU+UM+990-5679+MN01...

Please screen capture or provide all the logs as it relates to the following conditions: Input / output voltage, frequency, load, battery voltage, battery capacity, etc.