HP R5500 - Manual (Page 42)

Troubleshooting 42
Overload condition
All the load LEDs are illuminated.
Action:
1. Power down the UPS (" Powering down the UPS " on page 30 ).
2. Remove one or more load devices to reduce the power requirements.
3. Wait at least 5 seconds and restart the UPS.
4. If the condition persists, verify that the load devices are not defective.
REPO condition
Action:
• If the remote switch is closed, then open the switch to enable power to the output receptacles.
• If the condition occurred while reconnecting a disconnected REPO port, then verify the polarity of the
REPO connector pins.
For more information about REPO ports, see "Connecting the REPO port (on page 20 )."
Site wiring condition
Action: Contact a qualified electrician to be sure that:
• The utility power receptacle is grounded.
• There is a ground wire in the UPS power cord.
• The line and neutral wires are not reversed in the wall outlet.
UPS does not provide the expected backup time
Action:
1. If the Overload LED (" UPS front panel controls " on page 7 ) is illuminated, remove one or more load
devices to reduce the power requirements.
2. Allow the UPS batteries to charge for 48 hours.
3. If the Battery Fault LED is red, replace the batteries (" UPS battery replacement procedure " on page
36 ).
4. During extended power outages, save your work, power down the load devices, and then power
down the UPS ("
Powering down the UPS " on page 30 ) to conserve battery power.
UPS does not start
Action:
1. Be sure that the power cord is plugged in to a utility power receptacle.
2. Check the power source at the utility power receptacle.