Troubleshooting
Problem and Possible Cause | Solution |
The UPS will not turn on or there is no output.
The UPS 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 AC power. | Be sure the power cable is securely connected to the UPS and to the AC power |
| supply. |
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The input circuit breaker has tripped. | Disconnect nonessential equipment and reset the circuit breaker. |
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The UPS shows very low or no AC input | Check the AC power supply to the UPS by plugging in a table lamp. If the light is |
voltage. | very dim, check the AC voltage. |
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The battery is not securely connected. | Be sure that all battery connections are secure. |
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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 AC power.
The input circuit breaker has tripped. | Disconnect nonessential equipment and reset the circuit breaker. |
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There is very high, very low, or distorted input | Move the UPS to a different outlet on a different circuit. Test the input voltage with |
line voltage. | the AC voltage display. If acceptable to the connected equipment, reduce the UPS |
| sensitivity. |
The UPS is emitting an audible beeping sound.
The UPS is operating normally. | None. The UPS is protecting the connected equipment. |
The UPS does not provide expected battery backup time.
The UPS battery is weak due to a | Charge the battery. Batteries require recharging after an extended outage. |
recent power outage or is near the end | Elevated ambient temperatures, poor quality AC power, and frequent short duration |
of its service life. | discharges will shorten battery life. |
| If the battery is near the end of its service life, consider replacing the battery even if |
| the replace battery icon is not illuminated. |
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The UPS is experiencing an overload | Check the UPS load display. Unplug nonessential equipment, such as printers. |
condition. |
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The Fault LED is illuminated. 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. |
| If more than one fault is present the fault messages will be displayed alternately on |
| display screen. |
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The Replace Battery icon is illuminated. |
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The battery has a weak charge. | Allow the battery to recharge for at least four hours. Then, perform a |
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The replacement battery is not | Be sure the battery connector is securely connected. |
properly connected. |
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Site Wiring Fault LED is flashing. |
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Wiring faults detected include missing ground,
If the UPS indicates a site wiring fault, have a qualified electrician inspect the building wiring, applicable for 120 Vac units only.
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