Alarm codes, Troubleshooting – Riello UPS Sentinel Dual (High Power) (3.3 - 10 kVA) User Manual
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TROUBLESHOOTING
ALARM CODES
Using a sophisticated self check system, the UPS can verify and indicate on the display panel any faults
and/or malfunctions that may occur during the normal operation of the device. In the event of a problem, the
UPS indicates this by displaying the code and the type of alarm (FAULT and/or LOCK).
FAULT
FAULT signals can be subdivided into three categories.
Faults: these are “minor” problems that do not stop the UPS but reduce performance or prevent the
use of some of its functions.
CODE
DESCRIPTION
A06
Sensor1 temperature less than 0°C
A08
Sensor2 temperature less than 0°C
A11
Input relay locked (does not open)
A54
Load > preset user threshhold
A61
Batteries to be replaced
A62
No Battery box or not connected
A63
Waiting to recharge batteries
Alarms: these are more critical problems than faults since if they persist, even for a very short time,
they may cause the UPS to stop.
CODE
DESCRIPTION
F03
Auxiliary power supply not correct
F04
Dissipators overtemperature
F05
Temperature sensor1 faulty
F07
Temperature sensor2 faulty
F10
Input fuse broken or input relay locked (does not close)
F13
Condenser precharge failed
F21
Condenser bank overvoltage
F40
Inverter overvoltage
F41
Direct voltage in output
F42
Inverter voltage not correct
F43
Inverter undervoltage
F50
Overload: load > 103%
F51
Overload: load > 125%
F52
Overload: load > 150%
F53
Short circuit
F55
Waiting for reduction of load to return onto inverter
F60
Batteries overvoltage