SUM UPS fascia indication issue.

Using an SURTD front on an SUM type UPS will exhibit this behaviour.
When running from internal (battery) power the red FAULT LED will illuminate, when in fact its just indicating that the UPS is running from internal power.

[@elmerangulo4889]

Nice comparisson

[@rahmataulia]

Hi, my ups apc wont to power up, i'm click button power on but nothing happen, the electric has plug in

[@upstrader]

There is not enough information to diagnose. Check the cell voltages

[@sahudindien4540]

Consultatio about UPS

[@sahudindien4540]

Hello bos