Riello Sentinel Dual Error A08

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

Fault codeA08

The UPS temperature is below 0°C due to Sensor2 reading too low. The manual's first action is: “Check the temperature of the environment in which the UPS is located; if it is too low, bring it past the minimum threshold (0°C).”

Model
Riello Sentinel Dual
Display shows
A08
Type
Fault code
Source
Manual p. 26

What A08 means

THE TEMPERATURE OF THE UPS IS LOWER THAN 0°C p. 26

Common causes

  • THE TEMPERATURE OF THE UPS IS LOWER THAN 0°C p. 26
  • Sensor2 temperature under 0°C p. 26

What to do

  1. Check the temperature of the environment in which the UPS is located; if it is too low, bring it past the minimum threshold (0°C). p. 26

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

If A08 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 A08; 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.