TROUBLESHOOTING
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Symptom | Possible Cause | What To Do | |
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UPS will not turn on | On / Off / Test button not | Press the On button momentarily, | |
| pushed | (one beep) to start UPS | |
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UPS operates in | Input AC circuit breaker is | Reset circuit breaker by | |
battery mode only, | tripped | pressing the plunger back in. If | |
even though there is |
| the AC circuit breaker trips | |
normal AC present |
| after UPS starts up, reduce the | |
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| load on the UPS | |
Fault LED is | UPS has detected an internal | Call for service | |
illuminated | fault |
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The Site Wiring Fault | Incorrect service wiring | Have a qualified electrician | |
correct the service wiring | |||
LED is illuminated |
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The | The UPS is being controlled | Disconnect the computer cable | |
from the UPS and press the On | |||
Battery LED is | via its computer port | ||
button momentarily. If UPS works | |||
illuminated, but there |
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| normally, software has control of | ||
is no output |
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| the UPS | ||
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UPS does not provide | The batteries may be weak or | Charge the batteries for 8 hours | |
expected backup time | at the end of useful service | and retest. If the backup time is | |
with internal batteries | life. The Battery Pack's circuit | still less than expected, the bat- | |
or with a Battery Pack | breaker maybe tripped | teries may need to be replaced, | |
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| even though the Weak/Bad | |
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| Battery LED is not illuminated. | |
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| Reset the Battery Pack's circuit | |
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| breaker | |
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Weak/Bad Battery LED | Weak or bad batteries/bad bat- | Check battery connection/replace | |
is illuminated | tery connection | batteries. Follow battery replace- | |
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| ment procedures in section 6 | |
UPS occasionally | Normal operation | The UPS is performing its intended | |
emits a beep |
| function | |
Battery Pack does not | DC circuit breaker tripped. | Reset the DC circuit breaker. | |
charge | The Battery Pack's internal fuse | Call for service | |
| is blown |
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Overload LED is illumi- | The load has exceeded the | Check the specifications (see | |
nated and a constant | UPS's capacity | section 8). Remove part of the load | |
alarm |
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The | The UPS is in either the Buck | The UPS is performimg its intended | |
blinking and the audible | mode or the Boost mode | function | |
alarm is silent |
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English
11
