Alarm and battery failure ; Powerware 9102 - Powerware 9120 UPS System

it looks like you have a faulty static switch

The charger board has failure. Model already obsolete. Propose to buy a new unit

Remove the front panel plastic cover where the batteries are located, then plug the two connectors together, restart the UPS, and it should be fine.

Bypass failure is the same as your input unless you have a dual input. You lost power and the UPS did not hold the load because the batteries are bad. Replace the batteries and you will be ok.

Alarm error #191 comes from a battery test, where batteries are put under load for 25 seconds. (If the alarm is unexpected, you might have enabled the periodic 30-day battery test.)

#191 is test failure for battery internal resistance. So, need to locate and replace the bad battery, then run the battery test manually. If batteries are good, make sure no battery connector is corroded or loose.

Shut down the UPS and replace the batteries.

Unless new and hardly used - check the internal batteries. They might be worn out and fail to hold a proper charge. This to be able to deliver power when AC mains cuts out.

check your batery, may it was leaked, change it with new battery

Hi,

After you replaced the batteries did you perform a manual battery test?

If not do so.

Regards
Alan Hood
ami-man
UK

1st, the 9120 is a 700, 1000, 1500, 2000, 3000, 5000 or 6000 Va
if it is a 6000 Va that voltage sounds ok, and the ups as no problem, each battery will be around 12,75 Volts, it will be higher and the charging circle ends.