Riello Sentinel Dual Error F03

Riello Sentinel Dual UPS · taken from the manufacturer’s manual, pages cited

Fault codeF03

The UPS is malfunctioning and may lock soon due to incorrect auxiliary power supply. The manual's first action is: “If possible, disconnect the power to the load, switch the UPS off and back on again; if the problem occurs again, call the support centre.”

Model
Riello Sentinel Dual
Display shows
F03
Type
Fault code
Source
Manual p. 27

What F03 means

THE UPS IS MALFUNCTIONING; IT WILL PROBABLY LOCK SOON p. 27

Common causes

  • THE UPS IS MALFUNCTIONING; IT WILL PROBABLY LOCK SOON p. 27
  • Incorrect auxiliary power supply p. 27

What to do

  1. If possible, disconnect the power to the load, switch the UPS off and back on again; if the problem occurs again, call the support centre. p. 27

Before you service the product, read the safety instructions in the manual p. 26.

If F03 is still not resolved

  • contact service / dealer p. 18
    “In order to optimise performance, in ECO mode, the load is normally powered by the bypass.”
Open the manual at page 27 All Sentinel Dual error codes Manual details & download

This page summarises what the manufacturer’s manual says about F03; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Riello. Found a mistake? Report an error.