18
Insufficient
water flow
softener upriver the safety valve to reduce water hardness;
-
dirt and dust
if dirt or dust is present, clean the filter.
Boiler water or
steam from
taps
Incorrect appliance working mode settings:
-
high water temperature set-point (
could be check by the end user, too
)
if the set-
point is not able to satisfy the end user comfort request, adjust the set-point.
Incorrect thermostatic mixing valve setting (if present) due to:
-
high water temperature set-point
if the thermostatic mixing valve set-point is not
in compliance with the end user comfort request, adjust the set-point;
-
faulty component
if the thermostatic mixing valve is damaged or out of tune,
replace it.
Low sensors sensitivity due to:
-
high level of limestone into the tank
if the heating element is widely covered by
limestone, clean it and, if necessary, install a proper softener upriver the safety valve
to reduce water hardness.
Noise during
the heating
phase
Incorrect appliance horizontal installation
if the water pipes are on the right,
dismount the product from the wall and make the proper installation.
High level of limestone into the tank
if the heating element is widely covered by
limestone, clean it and, if necessary, install a proper softener upriver the safety valve to
reduce water hardness.
Bad water
quality
Dust and dirt (
could be check by the end user, too
)
if the cold water has a bad quality
because of dust and dirt presence, contact the network technical service.
Pipes connection corrosion due to:
-
different materials matching
if different metallic materials are used in the circuit,
provide dielectric joints between them.
“Shower ready”
icon/symbol
often off
Incorrect jumpers setting on the PCB
if the PCB jumpers have a different position
from what depicted at paragraph 2.5, set them properly.
4.3 Routine maintenance
All maintenance operations and service visits should be performed by a competent person (who have the
skills required by the applicable norms in force).
The pressure safety device must be enabled regularly (once a month)
to remove the limestone deposits
and to check that it is not clogged.
Replace the Mg anodes every two years
. To remove them, disassemble the heating elements and unscrew
them from the support bracket.
To ensure the best performance from this appliance, descale the heating element once every two years. If
you prefer not to use special descaling acids for this operation, simply crumble away the lime deposit
without damaging the heating element.
