Riello UPS Multi Sentry 160 MST User Manual

‐100‐
PROBLEM POSSIBLE CAUSE SOLUTION
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
A39, A40
AND THE RED
"REPLACE BATTERIES"
LED IS ON
BATTERIES HAVE NOT
PASSED THEIR PERIODIC
EFFICIENCY TEST
It is advisable to replace UPS batteries since they are
no longer able to maintain load for a sufficient
autonomy.
Caution: Battery replacement must be performed by
qualified personnel
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F34, L34, L35, L36
 AMBIENT TEMPERATURE
EXCEEDING 40°C
 SOURCES OF HEAT
NEAR THE UPS
 VENTILATION SLITS
OBSTRUCTED OR TOO
CLOSE TO WALLS
Activate manual bypass (SWMB) without switching off
the UPS. In this way, the fans can cool the dissipator
more quickly. Remove the cause of over-temperature
and wait for dissipator temperature to lower. Exclude
manual bypass.
TEMPERATURE SENSOR OR
UPS COOLING SYSTEM
MALFUNCTION
Insert manual bypass (SWMB) without switching off the
UPS so that fans can cool the dissipator more quickly.
Wait for dissipator temperature to lower. Switch off and
then re-start the UPS. Exclude manual bypass. Contact
the nearest service centre if this problem persists
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
F37, L37
 AMBIENT TEMPERATURE
EXCEEDING 40°C
 SOURCES OF HEAT
NEAR THE UPS
 VENTILATION SLITS
OBSTRUCTED OR TOO
CLOSE TO WALLS
 TEMPERATURE SENSOR
OR BATTERY CHARGER
COOLING SYSTEM
MALFUNCTION
Remove the cause of over-temperature.
Insert manual bypass (SWMB) without switching off the
UPS and wait for battery charger temperature to lower.
Exclude manual bypass. Contact the nearest service
centre if this problem persists
THE DISPLAY SHOWS
ONE OR MORE OF THE
FOLLOWING CODES:
L11, L12, L13
STATIC BYPASS BREAKAGE
OR MALFUNCTION
Activate manual bypass (SWMB). Switch off the UPS,
wait one minute and then re-start the UPS. Exclude
manual bypass. Contact the nearest service centre if
this problem persists
THE DISPLAY IS BLANK
OR GIVES INCORRECT
INFORMATION
THE DISPLAY IS HAVING
POWER PROBLEMS
Close Manual Bypass (SWMB) keeping closed INPUT
and OUTPUT switches.
Open input switch (SWIN and SWBYP) and wait until
UPS is completely turned OFF. Turn ON SWIN and
SWBYP again and verify display regular operation.
Exclude the maintenance bypass. If the fault persists,
contact the nearest technical support centre.
THE DISPLAY IS ON AND
READS L01, ONLY THE
SECONDARY BYPASS
FANS ARE RUNNING
BUT THE LOAD IS
POWERED
AUXILIARY POWER
MALFUNCTION.
THE UPS IS IN BYPASS
SUPPORTED BY A
REDUNDANT POWER
ADAPTER.
Activate manual bypass (SWMB). Switch off the UPS,
wait one minute and then re-start the UPS. If the
display does not switch back on or the sequence fails,
contact the nearest service centre leaving the UPS in
manual bypass.

Riello UPS Multi Sentry 160 MST Specifications

General

Brand	Riello UPS
Model	Multi Sentry 160 MST
Category	UPS
Language	English