Troubleshooting 96
Action:
1. Be sure that the UPS battery circuit breaker is in the On position.
2. If the condition persists, contact an HP authorized service representative.
Battery connection condition
Possible cause:
• The UPS does not recognize the internal batteries.
• Two or more battery trays are disconnected.
Action:
1. Be sure that all the battery trays are fully seated and locked in place.
2. If the condition persists, contact an HP authorized service representative.
Battery low condition
Possible cause: The UPS is in Battery mode (on page 66) and the batteries are running low.
Action:
Depending on the UPS load and number of attached ERMs, the Battery Low warning might occur before the
batteries reach 25% capacity. For battery runtime information, see "Battery runtimes (on page 104)."
When utility power is restored, the UPS restarts automatically, provides power to the load, and charges the
battery.
Battery test condition
Action:
Battery test pending:
1. Wait until the test completes.
2. See "Testing the new battery module (on page 89)."
Battery test did not run or was aborted:
1. Be sure that the bypass utility is available and within limits.
2. Allow the UPS batteries to charge for 48 hours.
3. Restart the battery test.
Battery test failed:
If the condition persists, contact an HP authorized service representative.
Bypass is unavailable
Possible cause: The UPS is receiving utility power that might be unstable or in brownout conditions. The UPS
continues to supply power to the connected equipment.
Action:
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