61
PROBLEM
POSSIBLE CAUSE
SOLUTION
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
THE 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
Call the nearest service centre.
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L01, L38, L39
FAULT IN:
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
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L10, L11, L12, L13
BREAKDOWN OR
MALFUNCTIONING OF THE
STATIC BYPASS
Activate the maintenance bypass (SWMB), switch the
UPS off and then on again. Switch off the maintenance
bypass. If the fault persists, contact the nearest technical
support centre
THE ALARM LIST SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L26, L27, L28
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.
Table 13
– Troubleshooting
