TROUBLESHOOTING
Table 10 Troubleshooting Guide
Alarm or Condition | Possible Cause | Action |
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The indicator is not on; the UPS | The power cord is not | Check the power cord connections. |
connected correctly. |
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does not start. |
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The UPS is in Standby mode.
Press and hold the 
(On/Off) button until you hear the UPS beep to supply power to the connected equipment.
| The wall outlet is faulty. | Have a qualified electrician test and repair the outlet. | |
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The UPS operates in Battery mode only, | The input overcurrent protector | Save your work and turn off your equipment. Turn off the UPS. | |
even though normal utility power is | is open | Reduce the load, then press the input overcurrent protector on | |
present. | only). | the UPS rear panel. |
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The UPS does not provide the expected | The batteries need charging or | Plug the UPS into a power outlet for 24 hours to charge the | |
backup time. | service. | battery. Press the | (Test/Alarm Reset) button. If the UPS |
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| beeps, see “Replacing Batteries” on page 20 to replace the | |
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| battery. |
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| During an extended power outage, save your work and turn | |
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| off your equipment to conserve battery power. | |
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| Normal operation. | None. The UPS is operating in Normal mode and | |
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| automatically provides consistent voltage with the Buck and | |
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| Boost feature. |
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1 beep every 4 seconds.
The UPS is on battery due to a utility failure.
The UPS is powering your equipment with battery power. Prepare your equipment for shutdown. During an extended power outage, save your work and turn off your equipment to conserve battery power.
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| 1 beep every 2 seconds. | The battery is running low. | Two minutes or less of battery power remains depending on |
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| load configuration and battery charge. |
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| Save your work and turn off your equipment. The alarm |
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| cannot be silenced. |
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| 1 beep every 4 seconds. | The UPS is running on battery | Correct the input voltage, if possible. The UPS continues to |
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| power because the input | operate on battery until the condition is corrected or the |
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| voltage is too high or too low. | battery is completely discharged. |
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| If the condition persists, the input voltage in your area may |
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| differ from the UPS nominal. Change the UPS input voltage to |
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| match your local voltage (see “Voltage Configuration” on |
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| page 13). |
1 beep per second. | Power requirements exceed UPS |
| capacity (overload is greater |
| than 120%) or the load is |
| defective. |
The UPS will automatically shut down in 3 minutes. Save your work immediately and turn off your equipment. Turn off the UPS.
Remove some of the equipment from the UPS. You may need to obtain a larger capacity UPS.
1 beep per second. | The UPS is on battery, and the |
| power requirements exceed UPS |
| capacity (overload is greater |
| than 120%) or the load is |
| defective. |
Shutdown is imminent (30 seconds). Save your work and turn off your equipment. Turn off and unplug the UPS.
Remove some of the equipment from the UPS. Wait at least
5 seconds until all LEDs are off, and then restart the UPS. You may need to obtain a larger capacity UPS.
Continuous beep. | Battery test failed. | Check the battery connections and be sure the battery is fully | |||
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| charged. |
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| If the |
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| (Service) indicator still flashes, see “Replacing |
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Batteries” on page 20. Call your service representative if the problem persists.
28 | HP T750 G2, HP T750J, HP T1000 G3, HP T1000J, HP T1500 G3, and HP T1500J UPS Models User Guide S |