Troubleshooting 48
Overload condition
Possible cause: Power requirements exceed the UPS capacity. For output overload ranges, see "UPS output
specifications (on page 50)."
Action:
Remove one or more load devices to reduce the power requirements.The UPS continues to operate, but might
switch to Auto-Bypass mode (on page 31) if the load increases.
The alarm resets when the conditions becomes inactive.
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 line and neutral wires are not reversed in the wall outlet.
• A ground wire connection does not exist.
UPS does not provide the expected backup time
Action:
1. Be sure that the battery circuit breakers are in the On position.
2. Allow the UPS batteries to charge for 48 hours.
3. If the condition persists, contact an HP authorized service representative.
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.
UPS frequently switches between utility and battery
power
Action:
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