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PROBLEM
POSSIBLE CAUSE
SOLUTION
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES: F09, F10
FAULT AT THE UPS INPUT
STAGE
Activate the maintenance bypass (SWMB), turn the
UPS off and on again. If the problem persists, call your
local service centre.
PHASE 1 HAS A VOLTAGE
MUCH LOWER THAN THE
OTHER TWO PHASES.
Open SWIN, turn the UPS on from the battery (see the
cold start procedure), wait for the end of the sequence
and close SWIN
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES:
F11, F13, F14, F15, F16,
F17, L06, L07, L08, L09,
L14, L15, L16, L17, L18,
L19, L20, L21, L22
FAULTY LOADS APPLIED
Remove the load. Insert the maintenance bypass
(SWMB), and turn the UPS off and then on again.
Switch off the maintenance bypass. If the problem
persists, call your local service centre
FAULT IN THE INPUT OR
OUTPUT STAGE OF THE UPS
Activate the maintenance bypass (SWMB) and turn the
UPS off and then on again. Switch off the maintenance
bypass. If the problem persists, call your local service
centre
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES: F19, F20
BATTERY CHARGER FAULT
Open the battery fuse holders (SWBATT), insert the
maintenance bypass (SWMB), shut down the UPS
completely and contact the nearest technical support
centre.
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES:
F23, L23, L24, L25, A22,
A23, A24
LOAD APPLIED TO THE UPS IS
TOO HIGH
Reduce the load
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES:
F26, F27, F28, F29, F30,
F31, L29, L30, L31
INTERNAL PROTECTIVE
FUSES BLOWN ON THE
PHASES OR INPUT RELAY
BROKEN
Call your local service centre
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES: F34, L34, L35,
A31
SYSTEM TEMPERATURE
OVER 50°C
HEAT SOURCES CLOSE
TO THE UPS
VENTILATION SLITS
OBSTRUCTED OR TOO
CLOSE TO WALLS
Activate the maintenance bypass (SWMB) 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) 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 centre.
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES: F40, F41, F42,
F43, L42
THE INTERNAL PROTECTION
FUSES ON THE BATTERIES
HAVE BLOWN OR BATTERY
RELAY IS BROKEN
Call the nearest service centre.
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES: F49, F50, F51,
F52, L43
COMMAND RELAY OR
BATTERY RELAY LOCKED
FAULT IN:
Call the nearest service centre.
THE ALARM LIST
SHOWS ONE OR MORE
OF THE FOLLOWING
CODES: L01, L38, L39
MAIN AUXILIARY POWER
SUPPLY
TEMPERATURE PROBE
OR UPS COOLING
SYSTEM
Activate the maintenance bypass (SWMB), turn the
UPS off and then on again. Switch off the maintenance
bypass. If the problem persists, call your local service
centre
