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Troubleshooting 33
Troubleshooting
LED and audible alarm troubleshooting
Condition
Power
On LED
(green)
On
Battery
LED
(yellow)
Overloa
d LED
(red)
General
Alarm LED
(red)
Audible alarm
Can
alarm be
silenced
("Silencin
g an
audible
alarm"
on page
24)?
UPS operating from
utility
On Off Off Off No audible alarm N/A
Buck mode (high
input voltage)
On Off Off Off No audible alarm N/A
Boost mode (low
input voltage)
On Off Off Off No audible alarm N/A
Over temperature
condition
On On Off Flashing On—Continuous No
Battery test failure Off On Off Flashing On—Continuous Yes
Fan failure On Off Off Flashing On—Continuous No
Output short circuit On On On Flashing On—Continuous No
Power up failure
from a DC start—
Low battery (no
utility power)
Flashing Flashing Flashing Flashing
On—3 beeps/10
seconds
No
Low battery (no
utility power)
Off Flashing Off Off
On—2 second
beep
No
Online—UPS power
capacity exceeded
On Off On Off
On—1 second
beep
No
Overload timeout Off Off On Flashing On—Continuous No
On battery—Input
voltage is out of
range
On On Off Off
On—2 second
beep
Yes
On battery—No
utility power
Off On Off Off
On— 4 second
beep
Yes
On battery—Battery
voltage condition
Flashing Off Off Flashing On—Continuous Yes
On battery—
Overload condition
Off On On Off
On—1 second
beep
No