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2.6 DESCRIPTION OF THE
ANOMALIES.
Ignition block.
The water heater ignites au-
tomatically with each demand for hot water
production. If this does not occur within a deter-
mined burner ignition time, the appliance goes
into “ignition block” (the discharge ends on the
pilot unit). To eliminate the “ignition block”, just
stop the withdrawal of DHW and then restore it.
If this phenomenon occurs frequently, contact an
authorised company (e.g. Authorised After-Sales
Technical Assistance Service).
Overheating thermostat block.
During normal
functioning, if a fault causes excessive over-
heating internally, the water heater goes into
overtemperature block. After suitable cooling,
eliminate the "overtemperature block", interrupt-
ing and then restoring the DHW withdrawal. If
this phenomenon occurs frequently, contact an
authorised company (e.g. Authorised After-Sales
Technical Assistance Service).
Chimney thermostat block.
During operation,
if the flue gas evacuation pipe does not function
correctly, the flue safety thermostat intervenes
blocking the water heater. The latter can only
re-start after suitable cooling, if normal condi-
tions are restored and in correspondence of a
new request for DHW. If this phenomenon oc-
curs frequently, contact an authorised company
(e.g. Authorised After-Sales Technical Assistance
Service).
2.7 SWITCHING OFF THE WATER
HEATER.
Disconnect the batteries and close the gas valve
upstream from the appliance. Never leave the
water heater powered if left unused for prolonged
periods.
2.8 REPLACING THE BATTERIES.
The batteries that power this appliance are
housed in the lower part of the water heater, near
to the hydraulic connections. To replace the bat-
teries, open the relevant compartment by pulling
the lid down and removing the batteries present.
Insert the new batteries respecting the polarities
indicated on the internal wall of the lid itself.
N.B.:
only use new “LR20” 1.5V alkaline batter-
ies. Dispose of the batteries replaced according
to the indications supplied by the manufacturer.
Do not use re-chargeable batteries as they could
limit functioning of the water heater.
- If there are leaks of substances from the battery,
avoid contact with the skin.
- If the liquid escaping from the battery comes
into contact with the eyes, rinse thoroughly
with water and contact a doctor.
- If the liquid comes into contact with the skin,
rinse thoroughly with water and soap.
- Contact the manufacturer of the batteries for
further information.
- Do not throw the batteries in the fire.
- Remove the batteries if the water heater re-
mains unused for a long period.
- Use a dry, rough cloth to clean the battery
housing, every time they are replaced.
- Contact the local authorities for information
regarding the disposal of the batteries.
2.9 EMPTYING THE WATER HEATER.
To empty the water heater, close the cold water
inlet valve and open the hot water valve lower
down in the water network in the room.
2.10 PROTECTION AGAINST FREEZING.
If the appliance remains inactive, in places at risk
of freezing, it must be emptied to prevent possible
breakage of the hydraulic circuit.
To do this, see the previous paragraph (emptying
the water heater)
2.11 CASE CLEANING.
Use damp cloths and neutral detergent to clean
the water heater casing. Never use abrasive or
powder detergents.
2.12 DECOMMISSIONING.
In the event of permanent shutdown of the
water heater, contact an authorised company
for the procedures and ensure that the batteries
are disconnected and the water and gas supply
lines are shut off.
