Ariston ECO GENIUS Benutzerhandbuch - Seite 24
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S
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
D
O
UE TO
VERHEATING
H
S
HUTDOWN
W
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".
D
I
UE TO
NSUFFICIENT
C
IRCULATION
J
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