PROBLEM AND POSSIBLE |
| SOLUTION |
CAUSE |
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|
BYPASS LED ILLUMINATES |
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|
The bypass switch has been |
| If bypass is the chosen mode of operation, ignore the illuminated LED. |
turned on manually or through |
| If bypass is not the chosen mode of operation move the bypass switch on the |
an accessory. |
| |
| back of the UPS, to the normal position. | |
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| |
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|
FAULT AND OVERLOAD LEDS ILLUMINATE; UPS EMITS A SUSTAINED ALARM TONE | ||
The UPS has ceased sending |
| The connected equipment exceeds the specified “maximum load” as defined in |
power to connected equipment. |
| Specifications on the APC Web site, www.apc.com. |
|
| Disconnect nonessential equipment from the UPS to eliminate the overload |
|
| condition. |
|
| Press the OFF button, then the ON button to restore power to connected |
|
| equipment. |
|
|
|
FAULT LED ILLUMINATES |
|
|
Internal UPS fault. |
| Do not attempt to use the UPS. Turn the UPS off and have it serviced |
|
| immediately. |
|
|
|
REPLACE BATTERY LED ILLUMINATES | ||
Replace Battery LED flashes and |
| Check that the battery connectors are fully engaged. |
a short beep is emitted every two |
|
|
seconds to indicate the battery is |
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|
disconnected. |
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|
Weak battery. |
| Allow the battery to recharge for 24 hours. Then, perform a |
|
| problem persists after recharging, replace the battery. |
|
|
|
Failure of a battery |
| The UPS emits short beeps for one minute and the Replace Battery LED |
|
| illuminates. The UPS repeats the alarm every five hours. Perform the |
|
| procedure after the battery has charged for 24 hours to confirm the Replace |
|
| Battery condition. The alarm stops and the LED clears if the battery passes the |
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| |
|
| |
UPS OPERATES ON BATTERY ALTHOUGH LINE VOLTAGE EXISTS | ||
Very high, low, or distorted line |
| Move the UPS to a different line circuit. Test the input voltage with the utility |
voltage. (Inexpensive fuel |
| voltage display. |
powered generators can distort |
|
|
the voltage.) |
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|
DIAGNOSTIC UTILITY VOLTAGE |
|
|
All five LEDs are illuminated. |
| The line voltage is extremely high and should be checked by an electrician. |
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|
|
There is no LED illumination. |
| If the UPS is plugged into a properly functioning utility power outlet, the line |
|
| voltage is extremely low. |
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|
ONLINE LED |
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|
There is no LED illumination. |
| The UPS is running on battery, or it is not turned on. |
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|
The LED is blinking. |
| The UPS is running an internal |
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15
