Hardware Problems
2-8
HP Servers Troubleshooting Guide
HP CONFIDENTIAL
Writer: Ted Weiman File Name: c-ch2 Hardware Problems.doc
Codename: Generic TSG Part Number: 161759-007 Last Saved On: 11/19/02 9:31 AM
Table 2-4: UPS Problems
continued
Problem Possible
Cause Possible
Solution
Line cord is not
connected.
Connect the line cord.
Circuit breaker or fuse is
open.
Push the circuit breaker button or replace
the fuse. If this occurs repeatedly,
contact an authorized service provider.
Battery or site wiring
problem has occurred.
Check the UPS LEDs. Refer to the UPS
documentation.
UPS is in sleep mode.
Disable sleep mode for proper operation.
The UPS has a sleep mode that can be
turned off through the configuration mode
on the front panel. Sleep mode initiates if
the power is removed and no load shows
on the UPS.
UPS will not start.
Heat damage or recent
air conditioning outage
has occurred.
Change the battery. The optimal
operating temperature for UPS batteries
is 25ºC (or 77ºF). For approximately
every 8°C to 10°C (16°F to 18°F)
average increase in ambient temperature
above the optimal temperature, battery
life is reduced by 50 percent.
Batteries need charging
or service.
Plug the UPS into an AC grounded outlet
for at least 24 hours to charge the
batteries, and then test batteries.
Replace the batteries if necessary.
Insufficient warning of
low batteries is displayed.
Alarm is not appropriately
set.
Change the amount of time given before
a low battery warning. Refer to the UPS
documentation for instructions.
One or more LEDs on the
UPS is red.
Cause depends on the
specific LED.
Refer to the UPS documentation for
instructions.
System Short Circuit
When powering up the server, the power status LED may blink intermittently, turn
amber, or stay off. Any of these situations indicate that the system is trying to start
but may have a short circuit.
