4: TROUBLESHOOTING
Use the chart below to solve minor UPS installation problems. Contact APC for assistance with complex UPS problems. Refer to the Operation Manual for operational problems.
PROBLEM AND POSSIBLE CAUSE |
| SOLUTION | |
UPS WILL NOT TURN ON |
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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 at both ends. | ||
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. | ||
Battery not connected properly. | Check that the battery connector is fully engaged. | ||
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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. | ||
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ALL INDICATORS ARE LIT AND THE UPS EMITS A CONSTANT BEEPING |
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Internal UPS fault. | Do not attempt to use the UPS. Turn the UPS off and have it | ||
| serviced immediately. |
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THE REPLACE BATTERY LED IS LIT |
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Weak battery. | Allow the battery to recharge for at least four hours. Then, per- | ||
| form a | ||
| the battery. |
| |
Replacement battery not connected | Check that the battery connector is fully engaged. | ||
properly. |
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THERE IS NO AC POWER AND THE UPS HAS BEEN TURNED OFF |
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When the UPS is off and there is no |
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utility power, use the cold start fea- | Press and hold the | button, (for about 3 seconds). The unit | |
ture to apply power to the connected | |||
will beep, the LED lights will flash, and the unit will beep a | |||
equipment from the UPS battery. | |||
second time. Release the ON button during the second beep. | |||
Cold start is not a normal condi- | |||
This will supply immediate power to the UPS and the connected | |||
tion. | |||
loads. Make sure the connected loads are switched to their ON | |||
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| positions. |
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11 |
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