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Service Call 0844 736 9138, Technical Help (Chargeable) Call 0906 802 0253
Code Service Parameters
Unit Description
Factory
setting
Modifi able
parameter
d.22 DHW demand active (tapping)
-
0 = off
1 = on
-
no
d.23 Central heating mode
-
0 = CH not available (summer mode)
1 = CH available (winter mode)
-
no
d.33 Speed setpoint of fan
rpm
Fan speed is displayed between 0 and 99.
Multiply the displayed value by 100.
-
no
d.44 Digitalized ionisation voltage
V
Display the digitalized ionisation voltage. Multiply
the displayed value by 100.
-
no
d.68 Unsuccessfull ignitions at fi rst attempt
-
Display the number of unsuccessfull ignitions at fi rst
attempt.
-
no
d.69 Unsuccessfull ignitions at second attempt
-
Display the number of unsuccessfull ignitions at
second attempt.
-
no
d.80 Operating hours in heating mode
h
Display the number of operating hours in heating
mode. Multiply the displayed value by 100.
-
no
d.81 Operating hours in domestic hot water mode
h
Display the number of operating hours in domestic
hot water mode. Multiply the displayed value by 100.
-
no
d.82 Number of burner starts in heating mode
-
Display the number of burner starts in heating
mode. Multiply the displayed value by 100.
-
no
d.83 Number of burner starts in DHW mode
-
Display the number of burner starts in DHW mode.
Multiply the displayed value by 100.
-
no
d.93 Device Specifi c Number
-
Select the product code of the appliance:
24 = 1
28 = 2
15
22
yes
d.96 Factory reset
-
All parameters stored in EEPROM (main board +
appliance interface) are reset to factory settings if
this function is activated.
0 = deactivated
1 = activated
0
yes
13.1.1
Status of the appliance
• Press button for 7 seconds to learn the current state of
functioning of the appliance.
The screen displays "S" and the state of the appliance.
• To exit to display menu, press the
button for 3
seconds.
Status Heating Mode
S.00
No request for heating
S.01
Pre-run fan
S.02
Pre-run pump
S.03
Ignition
S.04
Burner lit
S.05
Post run pump/fan
S.06
Post run fan
S.07
Post run pump
S.08
Time delay anti short-cycles after heating
Status Domestic hot water mode
S.10
Request for domestic hot water
S.11
Pre-run fan
S.13
Ignition
S.14
Burner lit
S.15
Post run pump/fan
S.16
Post run fan
S.17
Post run pump
Status Domestic hot water heating
S.20
Pre-run pump
S.21
Pre-run fan
S.23
Ignition
S.24
Burner lit
S.25
Post run pump/fan
S.26
Post run fan
S.27
Post run pump
S.28
The boiler blocks tank reheating after a reheating cycle.
Status Specifi c messages
S.30
No request for heating or domestic water.
S.31
"Hot water only" mode
S.32
Tolerance indication time of fan speed.
S.34
"Frost protection" mode
S.35
The speed of fan in functioning phase is outside tolerance
S.36
Heating Blockage
S.37
The speed of fan in functioning phase is outside tolerance
during operation
S.41
High pressure value
S.53
Waiting cycle: temperature differential between heating fl ow
and return is too high. If ∆T > 30, forcing to Pmin
S.54
Waiting cycle: lack of water in the installation/temperature
rise between heating fl ow and return is too high
S.58
A fi xed modulation until the condition provides
S.90
End of fi nal control test
S.92
Water fl ow sensor control, DHW and CH is in blockage
S.95
Voltage control, DHW and CH is in blockage
S.96
Return sensor control, DHW and CH is in blockage
S.97
Water pressure sensor control, DHW and CH is in blockage
S.98
Flow/Return sensor control, DHW and CH is in blockage
