Xtreme Power Conversion Corporation
XSTi User’s Manual
Page 6
Uninterruptible Power Supply
CAUTION:
The unit has a dangerous amount of voltage. If the UPS indicator is on, the unit’s outlets may
have a dangerous amount of voltage even when not plugged into the wall outlet because the battery may
continue to supply power. Care should be taken to undertake installation indoors, free from electrically-
conductive particles which are under temperature and humidity control, in order to reduce the risk of
electric shock. It is best to disconnect the device using the power supply cord. Ensure that the equipment
is placed in a position near the outlet where easily accessible. All servicing on this equipment must be
carried out by qualified service personnel. Before conducting any maintenance, repair, or shipment, first
ensure that everything is turned off completely and disconnected.
Troubleshooting
Condition
Visual Indicator
Alarm
No LED display on the front UPS
panel
Low battery
Charge the UPS at least 8 hours
Battery fault
Replace the battery with the same
type of battery
The UPS is not turned on
Press the Power Switch on the front
of the UPS
Alarm continuously sounds when
the AC input is normal
The UPS is overloaded
Remove some of the load from the
output of the UPS
UPS fault
Return the unit for service
Alarm sounds every 2 seconds
when the AC input is normal
Battery defect
Replace the battery with the same
type of battery
Charging circuit is damaged
Return the unit for service
When power fails, backup time is
shorter than expected
The UPS is overloaded
Remove some of the load from the
output of the UPS
Battery voltage is too low
Charge the UPS at least 8 hours
Battery defect
Replace the battery with the same
type of battery
The AC input is normal but the blue
LED is flashing
Power cord is loose
Reconnect the input power cord
properly
