| Symptom > |
Possible Cause |
What to do |
|
No light, no alarm (UPS not on)
| Front panel switch in off position
Rear panel fuse blown or circuit protector trip
No incoming utility
Breaker is off |
Turn on switch
Replace fuse or reset protector
Check input power
Check the breaker ON/OFF |
| No Line light, alarm beeps every few seconds |
Breaker is off
No incoming utility
Fuse blown or protector trip |
Check the breaker ON/OFF
Check the input power
Replace fuse or reset protector. If problem remains call for service |
| Fault LED lights, alarm beeps continuously |
UPS failure |
Call for service |
Backup time is less than rating |
Battery is not fully charged.
Dead battery
Charger failure |
Recharge the battery for at least 6 hours. Re-test the backup time. If problem remains, call for
service. |
| Load Level LED's show over 100% |
Overload |
Remove the least critical load |
Buzzer beat twice per second |
Overload |
Remove
the least critical load |
