49
26
•
DESCALING THE BOILER (if present)
26.1
•
DESCALING ACTION
Press key
15
; the boiler fills to capacity with
water mixed with descaling detergent.
“CYCLE 1”:
This is the first automatic cycle
permitting the boiler to heat up and hold
its temperature for 30 minutes (countdown
on display
7
) so the descaling agent
can act effectively, after which time the
boiler drains off the content (impurity of
detergent mixed with water). Check that
it flows out freely, if it does not then call
in the technical assistance service as the
drain could be blocked and the boiler need
servicing. This problem is also indicated on
displays
7-9
(see
“Self-diagnosis and fault
identification”
).
Afterwards the boiler is cleaned of the more
resistant particles of scale by forcing in
normal tap water, then it loads cleaned
water.
“CYCLE 2”
: This is the second automatic
cycle that permits operating the oven with
steam for 25 min. so as to thoroughly
cleanse the steam generator and the pipes
for introducing steam into the oven. The
cycle is completed with the phases of:
drain boiler, wash boiler by introducing
ordinary mains water and filling with
cleaned water.
Important:
The above sequence ensures thorough
cleaning of the steam generator that is
ready for use, any faults found during the
cycle will be signalled on display
7
and
9
,
at which stage the appliance must NOT
be used until an authorized technician
has seen it!
The correct conclusion of the program is
indicated by the
[End]
message. Press
button
6
to exit the
[dE]
program. The
amount of hours missing until a new
de-scaling cycle is updated at the same
time.
Caution:
This operation must be carried out under
the close supervision of the operator!
The operator must adhere strictly to the
precautions (mask, gloves etc.) for use
of the product!
The descaling cycle must not be
interrupted for any reason!
Interrupting the cycle renders the whole
process ineffective, wastes descaler,
and provokes the risk of contamination
if the descaler has not been completely
flushed out of the boiler. An interruption
will also prevent the electronic control
from resetting the boiler hour-counter to
zero.
It is advisable to thoroughly rinse the
cavity with the shower at the end of the
program.
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