New APC BackUPS RS 800 : Another issue : Overload ...

[Anonymous user]

Hi,
I got a first issue with an RS800 unit (defective data port) (2010/03) :
http://forums.apc.com/spaces/4/back-ups-surge-protectors/forums/general/1909/apc-back-ups-xs-1500-po...

I received a new unit (2010/04), and now 3 month later I have another issue :
Each time I power on the RS800, the Green light "On line" flashing during 3sec, then quickly the Battery one (very quickly), then the Red Overload led lights continuously !

I don't undertand because I just come back from vacation, the RS800 was disconnected from the the wall during 2 weeks, and now, when I turn it on, even with nothing connected on it, it tells me "Overload" (until now, it was about 30% usage only).
I disconnected the battery, just for testing, but nothing change.

What's the issue with it ?
(2 issues with 2 different units RS800 ... I wonder about building quality ...)
Thanks

Message was edited by: jean019