54
W
Problem
encoun-
tered
Veri
fi
cations to carry out
Traces of dirt appear
on the wall around
the appliance.
In a polluted atmosphere, dirt may appear on the appliance's air out-
lets or on the wall.This phenomenon is caused by poor ambient air
quality (
cigarette smoke, incense, chimney, etc.
). In this case, we recom-
mend verifying the ventilation in the room (
fan, air
fl
ow, etc.
).
The Expert Menu is
not accessible.
You saved a PIN Code.You must enter your code to access the Ex-
pert menu (
see Expert menu chapter
).
The appliance
does not follow
the internal
programming orders.
Check that the date and time are set.
Check that the appliance is in PROG mode and that internal
programming is selected.
The appliance does
not follow the ex-
ternal programming
orders.
Make sure that the programming unit is used correctly (
see unit user
manual
).
Check that the appliance is in PROG mode and and that the "Ext.
management" programming source is selected. .
The appliance does
not respond to the
pilot wire orders.
Carry out the following checks to verify that the programming or-
ders are being transmitted correctly.
Orders received
Oscilloscope Ref/
Neutral
Mode obtained
0 volt
COMFORT
230 V
3 - 5 min
COMFORT –
1° C
230V
7 - 5 min
COMFORT –
2° C
230 V
ECO
– 115 V negative
FROST
PROTECTION
+ 115 V positive
HEATING
STOP
In the case of programming by pilot wire or bearer current, the
frost
protection
or
shedding
orders are priority.
The time for the switchover from
Comfort
mode to
Eco
mode is
around 12 seconds.
The time for the switchover from
Comfort -1/-2
mode to
Com-
fort
mode is around 5 minutes.
corp_U065-7474-B-DIVALI-VERRE-PREMIUM Page 54
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