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Maintenance Guide
6.1 Troubleshooting
6.1.1 If the UPS malfunctions during operation please check that all lines are
connected properly and that the utility specifications are correct. Reference the
table below for solutions. Should the problem persist, please contact Falcon
Electric for assistance.
Situation
Check Items
Solution
Fault
LED
Read the error code (see
page 35) displayed by the
LCD and verify the fault.
1. Er05,Er39
1. Check for proper battery
connection. Measure battery
voltage to ensure that batteries
are charged. Recharge batteries
for 8 hours if necessary. Simulate
utility outage to verify that UPS is
able to provide DC backup.
Otherwise, contact Falcon
Electric.
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 Falcon Electric
for replacement parts and
accessories.
4. Site wiring / Ground
fault
4. Check if the “L” and “N” phases of
the utility AC source have been
incorrectly wired or if the ground-
neutral voltage exceeds the limits.
5. Er14 (Fan failure)
5. Verify that the ventilation fans are
functioning properly. Do not
attempt to replace the fans
yourself. Contact Falcon Electric
for service or repair.
6.Other error codes
6. Contact Falcon Electric for further
assistance.
