TROUBLESHOOTING
Use the table below to solve minor installation and operation problems. Refer to the APC Web site, www.apc.com for assistance with complex UPS problems.
| PROBLEM AND POSSIBLE |
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| SOLUTION | |
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| CAUSE |
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UPS WILL NOT TURN ON |
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Batteries are not connected | Check that the battery connectors are fully engaged. | |||||
properly. |
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| button not pushed. | Press the |
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| button once to power the UPS and the connected equipment. |
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UPS not connected to utility | Check that the power cable from the UPS to the utility power supply is securely | |||||
power supply. | connected at both ends. | |||||
Very low or no utility voltage. | Check the utility power supply to ensure proper voltage at the receptacle. | |||||
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UPS WILL NOT TURN OFF |
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| button not pushed. | Press the |
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| button once to turn the UPS off. |
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Internal UPS fault. | Do not attempt to use the UPS. Unplug the UPS and have it serviced | |||||
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UPS BEEPS OCCASIONALLY |
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Normal UPS operation when | None. The UPS is protecting the connected equipment. | |||||
running on battery. |
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UPS DOES NOT PROVIDE EXPECTED BACKUP TIME | ||||||
The UPS battery module(s) are | Charge the battery module(s). Modules require recharging after extended outages | |||||
weak due to a recent outage or | and wear faster when put into service often or when operated at elevated | |||||
are near the end of service life. | temperatures. If the battery module(s) are near the end of service life, consider | |||||
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| replacing, even if the Replace Battery LED is not illuminated. | |||
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FRONT PANEL LEDS FLASH SEQUENTIALLY |
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The UPS has been shut down | None. The UPS will restart automatically when utility power returns. | |||||
remotely through software or an |
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optional accessory card. |
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ALL LEDS ARE OFF AND THE UPS IS CONNECTED TO UTILITY POWER | ||||||
The UPS is shut down and the | None. The UPS will return to normal operation when the power is restored and | |||||
battery is discharged from an | the battery has a sufficient charge. | |||||
extended outage. |
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BYPASS AND OVERLOAD LEDS ILLUMINATE, UPS EMITS A SUSTAINED ALARM TONE | ||||||
The UPS is overloaded. | The connected equipment exceeds the specified “maximum load” as defined in | |||||
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| Specifications on the APC Web site, www.apc.com. | |||
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| The alarm remains on until the overload is removed. Disconnect nonessential | |||
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| equipment from the UPS to eliminate the overload condition. | |||
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