Troubleshooting, Led and audible alarm troubleshooting – HP R1500 User Manual
Page 29
Troubleshooting 29
Troubleshooting
In this section
LED and audible alarm troubleshooting..................................................................................................... 29
UPS does not start .................................................................................................................................. 30
UPS operates on battery only................................................................................................................... 30
UPS frequently switches between utility and battery power .......................................................................... 30
UPS does not provide the expected backup time ........................................................................................ 30
UPS cannot communicate with the host computer ....................................................................................... 31
UPS emits a slight clicking noise............................................................................................................... 31
Site Wiring Fault LED is red ..................................................................................................................... 31
LED and audible alarm troubleshooting
Condition
Power On
LED
(green)
On Battery
LED
(yellow)
Overload
LED
(red)
General
Alarm LED
(red)
Audible alarm
Can alarm
be silenced
("
page
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