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PROBLEM
POSSIBLE CAUSE
SOLUTION
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L01, L02, L03, L04, L06, L07,
L08
FAULTY LOADS APPLIED
Remove the load. Insert the maintenance bypass SWMB (if
present), and turn the UPS off and then on again. Switch off
the maintenance bypass. If the problem persists, call your
local service center.
FAULT IN THE INPUT OR
OUTPUT STAGE OF THE UPS
Activate the maintenance bypass SWMB (if present) and turn
the UPS off and then on again. Switch off the maintenance
bypass. If the problem persists, call your local service center.
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F05, F06, F09, F10
BATTERY CHARGER FAULT
Open the battery cabinet switch, insert the maintenance
bypass SWMB (if present), shut down the UPS completely and
contact the nearest technical support center.
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F07, L24, L09, L10, L11, L12,
L13, L14, L15, L16
THE LOAD APPLIED TO THE UPS
IS TOO HIGH
Reduce the load.
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L08, L09, L10, L11, L12, L13
OUTPUT SHORT CIRCUIT
Power off the UPS.
Disconnect all the devices connected to the phase concerned
by the short circuit.
Turn the UPS on again.
Reconnect the devices one by one until the faulty one is
identified.
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L22, F11
SYSTEM TEMPERATURE
OVER 50°C
HEAT SOURCES CLOSE TO
THE UPS
VENTILATION SLITS
OBSTRUCTED OR TOO
CLOSE TO WALLS
Activate the maintenance bypass SWMB (if present) without
powering off the UPS; in this way, the fans cool the heat sink
more quickly. Eliminate the cause of the over-temperature and
wait for the temperature of the heat sink to drop. Switch off the
maintenance bypass.
FAULT IN TEMPERATURE PROBE
OR UPS COOLING SYSTEM
Insert the maintenance bypass SWMB (if present) without
turning off the UPS so that the fans, continuing to run, cool
down the heat sink more quickly and wait for the temperature
of the heat sink to drop. Turn the UPS off and then on again.
Switch off the maintenance bypass. If the problem persists,
call your local service center.
THE FRONT AIR FILTER IS DIRTY
Clean the filter following the indications given in the
“Preventive maintenance” chapter.
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L39
FAULT IN:
MAIN AUXILIARY POWER
SUPPLY
TEMPERATURE PROBE
OR UPS COOLING
SYSTEM
Activate the maintenance bypass SWMB (if present), turn the
UPS off and then on again. Switch off the maintenance
bypass. If the problem persists, call your local service center.
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L28, L29, L34, L35
BREAKDOWN OR
MALFUNCTIONING OF THE
STATIC BYPASS
Activate the maintenance bypass SWMB (if present), switch
the UPS off and then on again. Switch off the maintenance
bypass. If the fault persists, contact the nearest technical
support center.
Table 10 – Troubleshooting
NOTE:
To reset locking alarms without re-supply the entire unit, press “UPS OFF” button on the display command menu.