Riello SENTINEL PRO - Alarm and Fault Code Reference; Faults, Anomalies, and Alarms

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ALARM CODES
Using a sophisticated self-diagnosis system, the UPS is able to check its own status and any anomalies and/or faults
which may occur during normal operation and display them on the display panel. If there is a problem, the UPS signals
the event by showing the code and the type of active alarm on the display (FAULT and/or LOCK).
FAULT
FAULT alerts can be divided into three categories:
 Anomalies: these are “minor” problems which do not cause the lock of the UPS but reduce performance or
prevent certain functions from being used.
CODE
DESCRIPTION
A06
Sensor1 temperature under 0°C
A08
Sensor2 temperature under 0°C
A54
Load percentage greater than the user threshold set
A61
Replace batteries
A62
Batteries missing or Battery Box missing or not connected
A63
Waiting for battery charging
 Alarms: these are more critical problems than anomalies because, if they persist, they could cause the UPS to
lock in a very short time.
CODE
DESCRIPTION
F03
Incorrect auxiliary power supply
F04
Dissipator overtemperature
F05
Temperature sensor1 faulty
F07
Temperature sensor2 faulty
F11
Input relay faulty
F13
Capacitor pre-charge failed
F21
Capacitor bank overvoltage
F40
Inverter overvoltage
F41
Continuous output voltage
F42
Incorrect inverter voltage
F43
Inverter undervoltage
F50
Overload: load > 103%
F51
Overload: load > 110%
F52
Overload: load > 150%
F53
Short circuit
F55
Waiting for load reduction to return to inverter
F60
Battery overvoltage