Ariston ECO GENIUS Manuel de l'utilisateur - Page 24

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HUTDOWN

This anomaly is indicated by "E03" on the

display. The boiler has shutdown because the

safety thermostat detected that the boiler

temperature has exceeded the maximum limit.

To reset this state, wait until the boiler has

cooled and press the button "H".

If the safety thermostat operates on a frequent

basis, contact one of our Authorised Service

Centres.

276

UE TO

VERHEATING

HUTDOWN

ATER

This anomaly is indicated by "A21" on the display.

One of the possible causes of this shutdown situation

could be the lack of water in the boiler or water

circulation failure in the primary heating circuit.

Check the system pressure on the pressure gauge "J"

and, if it is less than 0.5 bar, try bringing the system

pressure up to a mean value of 1.0 bar by opening the

water inlet valve. Then reset by turning the boiler off and

then back on by pressing the button "H".

UE TO

NSUFFICIENT

IRCULATION

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