Riello Sentinel Dual Error Codes: List of 30 Codes and Their Meaning

This is the list of fault codes the Riello manual gives for the Sentinel Dual Riello Sentinel Dual UPS. Find your code below and open it for what the manual says about its causes and what to do.

Fault codes from p. 26

Code	What it means	Page
`A06`	THE TEMPERATURE OF THE UPS IS LOWER THAN 0°C	p. 26
`A08`	THE TEMPERATURE OF THE UPS IS LOWER THAN 0°C	p. 26
`L10`	INPUT RELAY FAULTY	p. 26
`L11`	INPUT RELAY FAULTY	p. 26
`F11`	INPUT RELAY FAULTY	p. 26
`L02`	CONTROL CARD IS NOT INSERTED CORRECTLY	p. 26
`A54`	THE LOAD APPLIED TO THE UPS IS TOO HIGH	p. 27
`A61`	REPLACE THE BATTERIES	p. 27
`A62`	BATTERIES MISSING OR BATTERY BOX MISSING OR NOT CONNECTED	p. 27
`A63`	THE BATTERIES ARE FLAT; THE UPS IS WAITING FOR THE BATTERY VOLTAGE TO EXCEED THE SET THRESHOLD	p. 27
`F03`	THE UPS IS MALFUNCTIONING; IT WILL PROBABLY LOCK SOON	p. 27
`F04`	THE TEMPERATURE OF THE DISSIPATORS INSIDE THE UPS IS TOO HIGH	p. 27
`F53`	THERE IS A FAULT ON ONE OR MORE OF THE UTILITIES POWERED BY THE UPS	p. 27
`F60`	THE UPS IS MALFUNCTIONING	p. 27
`C01`	Remote control 1 (Switch Off)	p. 27
`C02`	Remote control 2 (load on bypass or manual bypass command)	p. 27
`F05`	Temperature sensor1 faulty	p. 28
`F07`	Temperature sensor2 faulty	p. 28
`F13`	Capacitor pre-charge failed	p. 28
`F21`	Capacitor bank overvoltage	p. 28
`F40`	Inverter overvoltage	p. 28
`F41`	Continuous output voltage	p. 28
`F42`	Incorrect inverter voltage	p. 28
`F43`	Inverter under voltage	p. 28
`F50`	Overload: load > 103%	p. 28
`F51`	Overload: load > 110%	p. 28
`F52`	Overload: load > 150%	p. 28
`F55`	Waiting for load reduction to return to inverter	p. 28
`C03`	Remote control 3 (Switch On/Off)	p. 29
`C04`	Battery test in progress	p. 29

Codes and descriptions are taken from the manufacturer’s manual; page numbers link to the PDF. ManualLib is not affiliated with Riello. Found a mistake? Report an error.