BX900R (XS 900) problem

[Anonymous user]

I'm having a problem with my XS-900 UPS, SN: JB0724000155. I've been
corresponding with tech support since 3 April. Ref# is #090404-000254.
Basically, I have found my UPS has a common problem, as it fails and drops
the load and indicates a possible site wiring fault.

This UPS has worked flawlessly 24/7 for nearly two years, since August 07. On the
first failure, the UPS dropped the load. I took it out of circuit and tested it,
and could not repeat the fault. I put it back in circuit, and it finally failed again,
dropped the load, emitted a continuous tone, and the "battery" LED was flashing RED four
flashes, and then blank, and then four flashes. Tech support wrote me back on 4/28 and
said this "may be due to improper voltage that is causing the problem. I would
request you to check the wiring from a good qualified electrician."

Oddly enough, it has worked for nearly two years, but now all of a sudden I have
bad wiring?

I believe there is an intermittent fault with the UPS. Out of circuit, I can turn it
on, with or without a load, and it passes self-test, and will support a load on battery (by pulling out the AC plug).
I do not trust it to put it back into circuit protecting my network.

I'd like some help from Tech support.

Thanks.

Bill

[BillP]

i looked at your incident.

we can finish up on here if you can tell me one thing - is the UPS overload LED solid or flashing when this happens??

[Erasmus_apc]

You said that it indicates a possible site wiring fault. Was this based solely on the flashing of the replace battery LED or was the SWF LED on the unit lit?

Was there any beeping that accompanied the flashing replace battery LED?

Based on the front of the UPS, are you sure it was the replace battery LED and not the "Overload" LED?

To humor our other tech. support rep, have you tried swapping the UPS to a different outlet? Also, what is the load on the UPS?

[Anonymous user]

Hi. As I mentioned in my earlier post to tech support, the "On Battery" (I mistakenly wrote "Battery" originally) LED was flashing RED four flashes at a time, and then none, then four, etc. It was emitting a continuous alarm tone. This was at 4:15 AM one morning. At that time, I cycled power, the UPS came online through self-test, and then I brought up all the equipment. Within a few minutes it failed in the same manner, everything on the UPS battery backup outlets went dead.

I did try it a different outlet, several times now, and loaded it with resistive loads (lamps, etc) and it did not have any faults. I let it run for 48 hours the last time. I am reluctant to hook up my computer and network to it and have it fail. If you think I should introduce the computer equipment to it and try this again, I will. I guess I'm convinced the UPS has a problem.

Total power draw, when this unit was operating, was about 270W if I recall. On the graphic in the GUI, the green bar went about one-third across the window. I used to test it by pulling the cord out of the outlet, and I also performed manual self-tests through the GUI.

To put this to rest, I am going to hook things up as originally done, and let it go until it faults again.

Thanks.

Bill

[BillP]

i will make a note in your incident. i agree with you that there is most likely a problem with the UPS and it should be replaced. respond back to tech support and tell them to read the note in the incident and also you can provide your shipping information, etc

you have done a good amount of troubleshooting.

thanks

[Anonymous user]

Thanks. I replied to my thread. The unit is going south I think. It is at 84% and charging, and making some humming noise, and fan is running. It is loaded at about 150 W.


Bill

[BillP · Accepted solution]

yeah, it needs to be replaced from what you're saying.