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3.2.13. Customizing Combi Features
As your combi has an advanced electronic card, operation conditions and
certain parameters related with your preferences may be changed by
our Authorized Service. Please consult our authorized service when any
changes requested in below given parameters.
(P06) (CH) (Heating) Power.
Combi is equipped with an electronic modulation with power suitable with
actual heat requirement of installation place. Thus, the combi automatically
operates with variable gas flow rates depending on heat load of installation
between the minimum and maximum power.
(P07) Controlled Power Increase Period.
When combi starts, it uses a controlled period defined for reaching the
adjusted maximum heating power. This period is adjusted as 3 minutes as
standard and can be increased up to 3 minutes.
(P21) Low temperature region selection.
This parameter should be adjusted as 1 for ground heating or heating
systems operating with low temperature. 0 (zero) value is selected for
radiator systems to operate at high temperatures as standard.
(P24) Child Protection
Your combi is protected against setting changes with the child lock that is
activated when the MODE button is pressed for 5 seconds.
Protection lock is activated when the parameter is adjusted as 1.
(P40) Radiator ignition delay period.
Combi device is equipped with an electronic timer for preventing frequent
ignition by the combi during heating stage. This period is adjusted as 2
minutes as standard and can be increased up to 10 minutes.
(P42) Ready Hot Water (Pre-Heating passive/active).
In order to rapidly prepare the domestic hot water without your request and
reducing the cold water consumption during waiting, it heats the grid water
in plate exchanger and keeps as hot water. This function can be activated
in 6 buttons LAWAPLUS models. Pre-heating function is activated when
domestic hot water temperature increase Figure 28 (2) RESET button is
pressed until cycle is completed. At the end of this period, Pre-On (active),
Pre-Off (passive) is seen on the LCD screen for 5 seconds.
Activation of this function in LAWA models is enabled with parametric
adjustment by our Authorized Service according to your request.
Air Discharge Function
Activating the menu for LAWA, PRIWA and ENERWA models:
Air discharge function can be activated by pressing the RESET button more
than 5 seconds while CH button and DHW button are at maximum position.
Upon activation of this function, 3 way valve and pump is operated or not
operated for discharging the air within the radiator installation.
4. TROUBLESHOOTING
4.1. FAILURE CODES TABLE
Failure
Code
Description of the Error
Malfunction
Probable Cause
Solution(s)
E 01
Intervention of exhaust Ther-
mostat (Open Combustion
Chamber boiler )
Boiler does not work, E01
error code flashing on the
screen
> Flue Sensor faulty
1-) Reset & Restart boiler
2-) Call for authorised service at first
E 02
Low water pressure in the
system/system parameter
wrongly setted
Boiler does not work, E02
error code flashing on the
screen
> Water pressure in the boiler
not enough
1-) Fill the boiler 1,2-1,5 bar according to manual page 28 or 29 problem
will automatically removed
2-) Check if the system pressure 1,2 - 1,5 bar from the manometer
located right & bottom of the boiler
3-) If problem persist Call for authorised service
4-) Reset & Restart boiler
E 03
High water pressure in the
system
Boiler does not work, E03
error code flashing on the
screen
> High Water pressure
in the boiler higher
than > 2,8 bar
1-) Drain the boiler water until 1,2-1,5 bar according to manual page 28
or 29 problem will automatically removed
2-) Check if the system pressure 1,2 - 1,5 bar from the manometer
located right & bottom of the boiler
3-) If problem persist Call for authorised service
4-) Reset & Restart boiler
E 04
Domestic heating water
temperature sensor faulty
Boiler does not work on DHW
mode but still work on Cen-
tral heating mode, E04 error
code flashing on the screen
> Domestic heating water
temperature sensor faulty
1-) Call for authorised service at first
2-) Check intermittent contacts or open contacts on harness carefully
3-) Check Domestic heating water temperature sensor ressistance
according to page 95 at section 4.30 if its out of tolerance replace NTC
4-) Check cabeling and connectors between double NTC and board
5-) Reset & Restart boiler
E 05
Central heating FLOW tem-
perature sensor faulty
Boiler does not work, E05
error code flashing on the
screen
> Central heating FLOW
temperature sensor faulty
1-) Call for authorised service at first
