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MAINTENANCE
MAINTENANCE
9
MAINTENANCE
9.1 Warnings
Protective gloves must be worn.
Cool down the appliance by shut-
ting off the gas cock and with-
drawing a large quantity of water
by opening the system's DHW
cocks.
The operations described in this
section must only be performed
by professionally qualified per-
sonnel, therefore you are advised
to contact an authorised service
centre.
For efficient and continuous boiler operation,
the user must have maintenance and cleaning
carried out once a year by an authorised ser-
vice centre technician. If these operations are
not carried out, damage to components and
boiler operation problems will not be covered
by the standard warranty.
Before performing any cleaning or mainte-
nance operation or before opening or remov-
ing the boiler panels,
isolate the unit from
the electric power supply
using the two-way
switch installed in the system and
close the
gas cock
.
9.2 Programming the maintenance
period
• Enter “programming mode” by pressing the
12 and 14 keys simultaneously for 5 seconds
(Figure 9.1) until
HiS
(Boiler History) appears
on the LCD display (Figure 9.2).
Figure 9.1
11
12
13
14
15
16
Figure 9.2
• Scroll through the various menus by press-
ing the keys 12 (back) or 14 (forward), until
PAr
(Parameters menu) appears on the LCD
display (Figure 9.3).
• Press the 13 key for 1 second to enter the se-
lected menu.
Figure 9.3
• Scroll through the various parameters by
pressing the keys 12 (back) or 14 (forward),
until
P34
, which alternates with the parame-
ter value, appears on the LCD display (Figure
9.4).
