What to do
|No lights/menu, no alarm
(UPS not ON)
|Front panel switch in off
Rear panel circuit breaker tripped.
No incoming utility.
|Turn on switch.
Reset circuit breaker.
Check utility input power.
|Low AC is
indicated, and UPS is not supplying power
||Incoming AC is
< 75% of nominal and >72% of nominal
||On LED front
panel, press TEST/ALARM SILENCE switch.
On LCD front
panel, press any button to go to the battery mode.
|No output, some LEDs are
on, or the LCD shows error message.
||This is an error code, and there
are many different causes.
||Look up the message or error
code, and take the appropriate action and/or call for service.
|Backup time is
less than the rating
1 or more dead batteries.
Load is greater than estimated.
batteries for at least 8 hours. If problem persists, call for service. Verify load is
|The UPS appears to be working,
but has no output voltage
||Output turned off by computer or
||Select STATUS menu, and search
for OUTPUT OFF message. Turn on with SETUP menu or cycle Power Switch. Verify remote OFF
contact / switch is off.
shutdown pending. Error code will be displayed.
||Look up the
message or error code, and take the appropriate action and/or call for service.