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PROBLEM
POSSIBLE CAUSE
SOLUTION
THE ALARM LIST SHOWS C06
THE JUMPER IS MISSING
FROM THE R.E.P.O.
CONNECTOR (REFER TO
R.E.P.O - “COMMUNICATIONS”
CHAPTER) OR THE
CONNECTOR IS NOT
INSERTED CORRECTLY
Assemble the jumper or check that it is inserted correctly.
THE ALARM LIST SHOWS C05
MAINTENANCE BYPASS
BREAKER (SWMB) CLOSED
OR INTERLOCK PADDLE IS
NOT IN PLACE
Verify if manual bypass switch (SWMB) is actually closed and
why or the interlock paddle was removed or misplaced.
Otherwise contact your local service center.
THE ALARM LIST SHOWS A01
INCORRECT DATA
CONFIGURATION
Check the settings.
THE ALARM LIST SHOWS
NOTHING OR PROVIDES
INCORRECT INFORMATION
THE DISPLAY HAS POWER
SUPPLY PROBLEMS
Close the Manual Bypass switch SWMB (if present) keeping
closed the INPUT and OUTPUT switches.
Open input switch (SWIN and SWBYP if present) and wait until
the UPS completely turns OFF.
Close the SWIN and SWBYP switches again and verify regular
display operation. Switch off the maintenance bypass. If the
fault persists, contact the nearest technical support center.
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F01, F02, F03
ONE OR MORE PHASES ARE
SWAPPED
Check the input and bypass terminal connections.
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
A18
PROTECTIVE DEVICE
UPSTREAM FROM THE
BYPASS LINE OPEN (ONLY IF
BYPASS IS SEPARATE)
Reset the upstream protective device. WARNING: check that
there is no overload or short circuit at the output of the UPS.
BYPASS SWITCH OPEN
(SWBYP ONLY IF BYPASS IS
SEPARATE FROM MAINS)
Close the bypass switch (SWBYP) if present.
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F04
WRONG BATTERY
CONNECTIONS OR BATTERY
FUSES BLOWN
Verify battery connections and, if the connections are correct,
replace the battery fuses.
WARNING: if necessary, we recommend to replace fuses only
with others of the same type. (for further information refer to
the Installation manual).
THE ALARM LIST SHOWS
ONE OR MORE OF THE A09
CODE
THE BATTERIES FAILED THE
PERIODIC EFFICIENCY TEST
The batteries of the UPS should be replaced as they are no
longer able to maintain the charge for a sufficient time to
ensure the required autonomy.
WARNING: The batteries are to be replaced by qualified
staff.
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L01
FAULT AT THE UPS INPUT
STAGE
Activate the maintenance bypass SWMB (if present), turn the
UPS off and on again. If the problem persists, call your local
service center.