HP R1.5 UPS R1500 XR Models User Guide - Page 39

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