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Troubleshooting
5-4 HP Uninterruptible Power System R1500 XR Models User Guide
Table 5-1: Troubleshooting continued
Symptom Possible Cause Suggested Action
The UPS frequently
switches between
utility and battery
power.
There are variations in utility
power.
The utility voltage is frequently outside
the UPS operating range. Update the
configuration.
Contact a qualified electrician to verify
that the utility power is suitable for the
UPS.
There is insufficient
warning of low
batteries.
Battery service is required. Allow the batteries to charge for
24 hours, then initiate self-test. If the
Bad Battery/Low Battery LED is red,
replace the 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.
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.