40
8 Possible malfunctioning
Troubleshooting
Problem Check Items Solution
Fault LED
Read the
error code*
(see next page)
displayed by
the combination
of LEDs, and verify
the fault as follows.
1. Er05,Er24
1. Check for proper battery connection. Measure
battery voltage to ensure that batteries are
charged and healthy. Recharge batteries for 8
hours if necessary. Simulate utility outage to verify
that UPS is able to provide DC backup. Otherwise
consult your local dealer right away.
2. Overload
2. Disconnect some non-critical loads from the UPS
output until the overload ceases. Check if there
is any short circuit between cables due to broken
cable insulation. Replace the cables if necessary.
3. Er11
(UPS Over
Temperature)
3. Remove any objects obstructing the ventilation
louvers. Verify that the cooling fans are working
properly. Contact your local dealer to replace the
fans if necessary.
4. Site wiring/
Ground fault
4. Check if the “L” and “N” phases of the utility
AC source have been wrongly wired or if the
Ground-Neutral voltage exceeds the limits.
5. Er14
(Fans out
of order)
5. Verify that the ventilating fans are functioning
properly. Do not attempt to replace the fans
yourself. Contact your local dealer for replacement.
6. Other error
codes
6. Consult your local dealer for assistance.
UPS fails to provide
battery backup or its
backup time is shorter
than its intended
performance.
If the backup time remains unsatisfactory after 8
hours of charging please contact your local dealer
for battery replacement.
UPS is normal, but
there is no output to
the load.
Check that all
power cords
are properly
connected.
If the problem persists consult your local dealer for
technical assistance.
To Next Page
Loading...
