Troubleshooting 56
Input voltage is out of range
Action:
1. Check the input voltage and reconfigure the UPS ("Configuring the UPS" on page 40).
2. Contact a qualified electrician to verify that the utility power is suitable for the UPS.
Overtemperature condition
Possible cause: The UPS internal temperature is too high, or a fan has failed.
Action:
1. Power down the UPS ("Powering down the UPS" on page 42).
2. Allow the UPS to cool:
a. Clear vents and remove any heat sources.
b. Be sure that the that the airflow around the UPS is not restricted.
3. Wait at least 5 minutes, and then restart the UPS.
4. If the condition persists, contact an HP authorized service representative.
Internal UPS fault condition
Action:
1. Power down the UPS ("Powering down the UPS" on page 42).
2. If the condition persists, contact an HP authorized service representative.
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 21)."
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.
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