191 A problem has occurred with the uninterruptible power supply battery.

Action

Exchange the FRU for a new FRU. (See "Possible Cause-FRUs or other.") After replacing the battery assembly, if the 2145 UPS-1U service indicator is on, press and hold the 2145 UPS-1U Test button for three seconds to start the self-test and verify the repair.

Possible Cause-FRUs or other:

• 2145 UPS-1U battery assembly
• 2145 UPS-1U assembly