6. Maintenance Guide
6.1 Troubleshooting
If the UPS malfunctions during operation please check that all lines are
connected properly and that the utility specifications are correct. Then check the
table below for solutions. Should the problem persist please contact your local
dealer for assistance.
Read the error code (see
next page) displayed by
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
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
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
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
6. Consult your local dealer for
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