Troubleshooting - LEGRAND Keor SPE 750 Installation And User Manual

5. Troubleshooting

INDICATION
The UPS works on battery
mode even though the mains
power is available
Continuous sound alarm sound
with the UPS working in normal
mode
The UPS is working
normally but the loads are
not powered
The UPS does not operate in
battery mode: it shuts down or
immediately signals it is close to
the operating limit
Strange noise or smell
POSSIBLE CAUSE
The input fuse blew
up
The mains power
supply socket is not
supplying power to
the UPS
-
The input line is out
of the allowed UPS
range
Overload
-
The UPS has
operated with no
mains voltage for a
long time and has
not been able to
recharge the battery
The battery is flat
due to not using the
UPS for a long
period.
The battery has run
down due to being
used frequently, to
ambient conditions,
or to having
exceeded its
average service life
UPS fault
KEOR SPE TOWER
SOLUTION
Replace the fuse with a new one
Check if the UPS works on
another socket.
If so, have the first mains power
supply socket checked by a
qualified electrician.
Check that the input power cord is
properly connected to the inlet and
to the mains socket
Check the input line
Disconnect some non-critical loads
from the UPS outlets until the
overload ceases
Check that all power cords are
properly connected to the outlets
and to the load.
If the problem persists, contact the
LEGRAND Technical Support
Service
Recharge it for at least 8 hours by
connecting the UPS to the mains
Recharge it for at least 6 hours by
connecting the UPS to the mains.
If the batteries are no longer
working, contact a skilled
technician to replace them.
Contact a skilled technician or the
LEGRAND Technical Support
Service to replace the batteries
Shut down immediately the UPS.
Unplug the UPS from the mains
socket and contact the LEGRAND
Technical Support Service
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