17
INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
Display
Type of alarm
Solutions
Temporary stop
Incorrect network frequency detection alarm.
Wait for the water heater to auto reset (1).
Definite shutdown
Flame loss alarm for more than 3 consecutive times.
(1)
Temporary stop
Button fault
It is displayed when the button is held for over 30 seconds; once
released, the fault disappears.
Definite shutdown
Valve calibration request.
(1)
Temporary stop
AL70 - Inlet temperature alarm >70°C
Displayed with a flashing bell only
Complete view is only displayed in the alarms log
(1)
Definite shutdown
Alarm regarding increased temperature not reached.
(1)
Definite shutdown
Driver error alarm.
(1)
Definite shutdown
Alarm caused by a problem with combustion during ignition.
Press and hold the reset button ( ). As soon as the wording
( ) is displayed, release the button.
The appliance restarts automatically (1).
Definite shutdown
Block caused by persistent bad combustion
(1)
Temporary stop
Bad combustion alarm
(1)
Temporary stop
AL84 - Bad combustion alarm
Displayed with a flashing flame only
Complete view is only displayed in the alarms log
(1)
Definite shutdown
Fan revs sensor alarm
(1)
Display
High temperatures
(1)
Definite shutdown
Software, startup board error alarm
(1)
(1) If the shutdown or fault persists, contact an authorised company (e.g. Technical After-Sales Service)
2.6 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.
2.7 ANTI-FREEZE PROTECTION
(OPTIONAL).
The water heater can be equipped with an op-
tional antifreeze kit to protect it against freezing
down to outdoor temperatures of -15°C. To
install the kit correctly and, more importantly,
to ensure suitable operation, it is necessary to
follow the instructions supplied with the said kit.
2.8 CLEANING THE CASE.
Use damp cloths and neutral detergent to clean
the water heater casing. Never use abrasive or
powder detergents.
2.9 DECOMMISSIONING.
In the event of permanent shutdown of the water
heater, contact professional staff for the proce-
dures and ensure that the electrical, water and
gas supply lines are shut off and disconnected.
2.10 GAS SYSTEM NOT USED FOR
PERIODS OVER 12 MONTHS.
The current regulation provides that gas systems
not used for over 12 months must be checked
prior to being used again, as per regulations in
force, by professionally qualified staff.
If the inspection is successful, the water heater
can be recommissioned according to the instruc-
tions specified in
Paragraph
1.17
herein.
