5: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 |
| SOLUTION |
CAUSE |
|
|
UPS WILL NOT TURN ON |
|
|
Batteries are not connected | Check that the battery connectors are fully engaged. | |
properly. |
|
|
button not pushed. | Press the | button once to power the UPS and the connected equipment. |
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. | |
|
|
|
UPS WILL NOT TURN OFF |
|
|
button not pushed. | Press the | button once to turn the UPS off. |
Internal UPS fault. | Do not attempt to use the UPS. Unplug the UPS and have it serviced | |
| immediately. |
|
|
|
|
UPS BEEPS OCCASIONALLY |
|
|
Normal UPS operation when | None. The UPS is protecting the connected equipment. | |
running on battery. |
|
|
|
| |
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 | |
| replacing, even if the Replace Battery LED is not illuminated. | |
|
|
|
FRONT PANEL LEDS FLASH SEQUENTIALLY |
| |
The UPS has been shut down | None. The UPS will restart automatically when utility power returns. | |
remotely through software or an |
|
|
optional accessory card. |
|
|
|
| |
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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|
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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 | |
| Specifications on the APC web site, www.apc.com. | |
| The alarm remains on until the overload is removed. Disconnect nonessential | |
| equipment from the UPS to eliminate the overload condition. | |
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