Riello Sentinel Dual Error L02: CONTROL CARD IS NOT INSERTED CORRECTLY

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

Fault codeL02

The control card is not inserted correctly into the UPS unit. The manual's first action is: “Switch off and disconnect the UPS from the power supply and contact the support centre.”

Model
Riello Sentinel Dual
Display shows
CONTROL CARD IS NOT INSERTED CORRECTLY (L02)
Type
Fault code
Source
Manual p. 26

What L02 means

CONTROL CARD IS NOT INSERTED CORRECTLY p. 26

Common causes

  • CONTROL CARD IS NOT INSERTED CORRECTLY p. 26

What to do

  1. Switch off and disconnect the UPS from the power supply and contact the support centre. p. 26

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

If L02 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 26 All Sentinel Dual error codes Manual details & download

This page summarises what the manufacturer’s manual says about L02; 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.