Compaq ProLiant 1000 ProLiant Server Troubleshooting Guide - Page 50

Hardware Problems Table 2-4: UPS Problems continued Problem Possible Cause UPS will not start. Line cord is not connected. Circuit breaker or fuse is open. Battery or site wiring problem has occurred. UPS is in sleep mode. Heat damage or recent air conditioning outage has occurred. Insufficient warning of Batteries need charging low batteries is displayed. or service. Alarm is not appropriately set. One or more LEDs on the Cause depends on the UPS is red. specific LED. Possible Solution Connect the line cord. Push the circuit breaker button or replace the fuse. If this occurs repeatedly, contact an authorized service provider. Check the UPS LEDs. Refer to the UPS documentation. 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. 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. 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. Change the amount of time given before a low battery warning. Refer to the UPS documentation for instructions. 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. 2-8 HP Servers Troubleshooting Guide