Troubleshooting
Problem and Possible Cause | Solution |
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The UPS will not turn on or there is no output | |
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The unit has not been turned on. | Press the ON button once to turn on the UPS. |
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The UPS is not connected to utility | Ensure that the power cable is securely connected to the unit and to the utility |
power. | power supply. |
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The input circuit breaker has tripped. | Reduce the load to the UPS, disconnect nonessential equipment and reset the |
| circuit breaker. |
The unit shows very low or no input utility voltage.
Check the AC power supply to the UPS by plugging in a table lamp. If the light is very dim, check the utility voltage.
The battery connector plug is not securely Ensure that all battery connections are secure. connected.
There is an internal UPS fault.
Do not attempt to use the UPS. Unplug the UPS and have it serviced immediately.
The UPS is operating on battery, while connected to input utility power
The input circuit breaker has tripped. | Reduce the load to the UPS, disconnect nonessential equipment and reset the |
| circuit breaker. |
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There is very high, very low, or distorted | Move the UPS to a different outlet on a different circuit. Test the input voltage |
input line voltage. | with the utility voltage display. If acceptable to the connected equipment, |
| reduce the UPS sensitivity. |
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UPS is emitting an audible beeping sound | |
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The UPS is in normal operation. | None. The UPS is protecting the connected equipment. |
UPS does not provide expected backup time
The UPS battery is weak due to a recent outage or is near the end of its service life.
Charge the battery. Batteries require recharging after extended outages and wear out faster when put into service often or when operated at elevated temperatures. If the battery is near the end of its service life, consider replacing the battery even if the replace battery indicator is not yet illuminated.
The UPS is overloaded. | Check the UPS load display. Unplug unnecessary equipment, such as printers. |
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Display interface indicators flash sequentially | |
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The UPS has been shut down remotely | None. The UPS will restart automatically when utility power returns. |
through software or an optional accessory |
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card. |
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The Fault indicator is lit and the UPS displays a fault message and emits a constant beeping sound
Internal UPS fault. | Do not attempt to use the UPS. Turn the UPS off and have it serviced |
| immediately. |
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All indicators are illuminated and the UPS is plugged into a wall outlet
The UPS has shut down and the battery has discharged from an extended outage.
None. The UPS will return to normal operation when the power is restored and the battery has a sufficient charge.
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