
Troubleshooting
Problems During Startup
If problems occur when starting the UPS, refer to Table
Table
Symptom | Possible Cause | Suggested Action |
UPS will not start. There is no utility power.
Unit is hardwired. Contact a qualified electrician to check power at the utility receptacle.
| Batteries are disconnected. | Install the battery trays. If the |
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| batteries are installed, remove and |
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| then reinsert the electronics modules. |
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| REPO: Audible alarm sounds | Ensure that the REPO switch is in the |
| and Alarm LED is lit. | proper position (open) and utility is |
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| present. Press the On button. |
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Problems After Startup
If problems occur after starting the UPS, refer to Table
Table
Symptom | Possible Cause | Suggested Action |
Audible alarm sounds. | An alarm condition exists. | Scroll through the LCD menu for |
Alarm LED is lit. |
| system alarms to determine the |
| cause. | |
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| |
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Bypass LED is flashing. | Automatic Bypass mode is not | Scroll through the LCD menu for |
| available. | system alarms to determine the |
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| cause. |
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| Manual Bypass is not |
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| recommended during this |
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| condition. |
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Utility LED is flashing slowly, | Utility power is within | Press the On button to assume |
and all other LEDs are off. | acceptable range. | the load. |
| The UPS is operating normally |
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| and is in Standby mode. |
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Utility LED is flashing rapidly. | The full UPS or an electronics |
| module is in the process of |
| starting up. |
Wait for continuous Utility or Battery LED light, or slowly flashing Utility LED.
continued
HP Uninterruptible Power System R12000 XR Models User Guide |