Type
No.
Description
External relay 2 function
0 = not used; 1 = remote alarm NO; 2 = remote alarm NC; 3 = zone
PAR
24
valve; 4 = automatic filling; 5 = external request; 6 = recirculation
pump; 7 = zone valve with OT; 8 = relaunch pump
Auxiliary TA function
0 = according to TA
PAR
25
1 = TA Antifreeze
2= domestic hot water disabled
PAR
26
Zone Valve / Pump Relaunch Delay
PAR
28
DHW activation delay with solar power
Anti-legionella Function (Only hot water tank)
PAR
29
-- = Disabled
PAR
30
Maximum domestic hot water temperature
Digital / analogue Pressure switch
0 = water pressure switch
PAR
35
1 = water pressure transducer
2 = water pressure transducer (only pressure displayed)
PAR
40
Modulating Pump Speed
PAR
41
∆T Modulating pump delivery/Return
System pump forcing (only in winter mode)
PAR
47
0 = Disabled
1 = Enabled
PAR
48
INST Parameter set to default
In the event of a fault/malfunction the message "ALL" will appear
on the display with the alarm number eg. "ALL 04" (Domestic
Hot Water Sensor Fault).
Before repairing the fault:
– disconnect the appliance from the mains power by setting the
main switch to "OFF"
OFF
– as a precautionary measure, close the gas isolation valve.
Repair the fault and start-up the boiler again.
NB:
after having repaired the fault, when the alarm number
appears on the display together with the message
(see figure), press the button
to start the appliance up again.
78
All manuals and user guides at all-guides.com
Fig. 32
d
y
for approximately 3 seconds
Range
0 .. 8
0 .. 2
0 .. 99
0 .. 30
50 .. 80
35 .. 67
0 .. 2
-- = No modulation
AU = Automatic 30
.. 100
10 .. 40
0 .. 1
RESET
0 .. 1
3.5
Fault / malfunction codes
Type
No.
Description
ALL
02
Low water pressure in system
ALL
03
High water pressure in system
ALL
04
Domestic hot water sensor fault
ALL
05
Delivery sensor fault
ALL
06
No flame detection
ALL
07
Safety thermostat intervention
ALL
08
Fault in the flame detection circuit
ALL
09
No water circulating in the system
ALL
10
Auxiliary sensor fault
ALL
11
Gas valve modulator disconnected
ALL
12
Incorrect configuration of the open /sealed chamber
ALL
13
Smoke probe intervention
ALL
14
Smoke probe fault
ALL
15
Fan check cable disconnected
ALL
18
Condensate level fault
ALL
28
Maximum number of consecutive releases
ALL
37
Fault due to low network voltage
ALL
40
Incorrect network frequency detected
ALL
41
Flame loss more than 6 consecutive times
ALL
42
Button fault
ALL
43
Open Therm communication fault
ALL
62
Self-calibrating procedure is required
ALL
72
Incorrect positioning of the delivery sensor
ALL
81
Block due combustion during start-up
ALL
83
Irregular combustion (temporary error)
ALL
96
Block due to clogging in smoke outlet
EN
U/M
Step
Default
-
-
0
-
1
0
Min
1
1
Min
1
0
-
1
--
°C
1
60
-
1
1
%
10
AU
%
1
20
-
1
0
-
-
0