APC UPS Overload light blinking and constant alarm tone

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With thanks & praise to God, and with thanks to the many people who have made this project possible! | Content (except music & images) licensed under cc by-sa 3.0 | Music: https://www.bensound.com/royalty-free... | Images: https://stocksnap.io/license & others | With thanks to user William Hilsum (https://superuser.com/users/4386), user slhck (https://superuser.com/users/48078), user Saxtus (https://superuser.com/users/19382), user Patrick (https://superuser.com/users/136486), user nik (https://superuser.com/users/263), user Mike Larson (https://superuser.com/users/99404), user Lara Dougan (https://superuser.com/users/3221), user John Richardson (https://superuser.com/users/111180), user fixer1234 (https://superuser.com/users/364367), and the Stack Exchange Network (http://superuser.com/questions/79340). Trademarks are property of their respective owners. Disclaimer: All information is provided "AS IS" without warranty of any kind. You are responsible for your own actions. Please contact me if anything is amiss at Roel D.OT VandePaar A.T gmail.com.