Troubleshooting
HP Uninterruptible Power System T2200 XR Models User Guide
5-3
Table 5-2: Troubleshooting After Startup
continued
Symptom
Possible Cause
Suggested Action
The Overload LED is red.
Protected devices are
exceeding the UPS power
rating.
Remove one or more devices to
reduce the power requirements.
The UPS may switch from utility
to battery power.
Verify that the devices are not
defective.
The On Battery LED (
)
is flashing red.
The battery voltage is low.
If the UPS is supplying battery
power, save your current work and
power down the system. Allow the
batteries to charge.
If the UPS is supplying utility power,
no user intervention is required.
Allow the batteries to charge.
There is insufficient
warning of low batteries.
Battery service is required.
Allow batteries to charge for 24
hours, then initiate a self-test. If the
Bad Battery/Low Battery LED is
red, replace batteries.
The Shutdown Delay
configuration is inappropriate.
Update the Shutdown Delay from
5 seconds to 3 minutes.
Use HP power management
software to specify a suitable delay.
The Bad Battery/
Low Battery LED (
) is
flashing red.
A potential battery failure is
detected.
Allow the batteries to charge for 24
hours, then initiate self-test. If the
Bad Battery/Low Battery LED is
red, replace the batteries.
New batteries are improperly
connected.
Verify that the batteries are
connected properly.
All LEDs are flashing
red and an audible
alarm cannot be
silenced.
An internal UPS fault condition
exists.
Power down the UPS. Contact an
authorized service representative.
Repairing the UPS
Repairs to the UPS must be carried out by HP or an authorized service representative. Other
than battery replacement, there are no UPS user-serviceable parts.
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