7:TROUBLESHOOTING
Use the chart below to solve minor UPS installation problems. Also refer to the APC web site. Con- tact APC for assistance with complex UPS problems.
PROBLEM AND POSSIBLE CAUSE | SOLUTION |
UPS WILL NOT TURN ON |
|
ON button not pushed. | Press the ON button once to power the UPS and the load. |
UPS not connected to AC power | Check that the power cable from the UPS to the utility power |
supply. | supply is securely connected. |
UPS input circuit breaker tripped. | Reduce the load on the UPS by unplugging equipment and re- |
| setting the circuit breaker (on the back of UPS) by pressing the |
| plunger in. |
Very low or no utility voltage. | Check the AC power supply to the UPS by plugging in a table |
| lamp. If the light is very dim, have the utility voltage checked. |
Rear Connector Plug not engaged | Check the back of the unit to verify that the Rear Connector |
| Plug is fully engaged. |
|
|
Battery not connected properly. | Check that both battery connectors are fully engaged. |
|
|
UPS WILL NOT TURN OFF |
|
Internal UPS fault. | Do not attempt to use the UPS. Unplug the UPS and have it |
| serviced immediately. |
|
|
UPS OPERATES | |
UPS input circuit breaker tripped. | Reduce the load on the UPS by unplugging equipment and re- |
| setting the circuit breaker (on the back of UPS) by pressing the |
| plunger in. |
Very high, low, or distorted line | Move the UPS to a different outlet on a different circuit. Test |
voltage. Inexpensive fuel powered | the input voltage with the utility voltage display. If acceptable to |
generators can distort the voltage. | the connected equipment, reduce the UPS sensitivity. |
|
|
UPS BEEPS OCCASIONALLY |
|
Normal UPS operation. | None. The UPS is protecting the load (connected equipment). |
|
|
UPS DOES NOT PROVIDE EXPECTED BACKUP TIME | |
The UPS battery is weak due to a | Charge the battery. Batteries require recharging after extended |
recent outage or is near the end of its | outages. They wear faster when put into service often or when |
service life. | operated at elevated temperatures. If the battery is near the end |
| of its service life, consider replacing the battery even if the re- |
| place battery LED indicator is not yet lit. |
The UPS is overloaded. | Check the UPS load display. Unplug unnecessary equipment, |
| such as printers. |
|
|
FRONT PANEL INDICATORS FLASH SEQUENTIALLY | |
The UPS has been shut down re- | None. The UPS will restart automatically when utility power |
motely through software or an op- | returns. |
tional accessory card. |
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| 19 |
