78
To enter "Parameter setting and display"refer to the indica-
tions in the relevant section.
Once the parameters in the table have been set, you must car-
ry out the entire phase of "Commissioning".
4.6
Possible faults and solutions
LIST OF MALFUNCTION/FAULT ALARMS
Type
No.
Fault
Solution
AL
02
Low water pressure in
system
- Restore pressure
- Check for any leaks in
the system
AL
04
Domestic hot water
sensor fault
- Check connections
- Replace the sensor
AL
05
Delivery sensor fault
- Check connections
- Replace the sensor
AL
06
No flame detection
- Check the integrity
of the electrode and
check that it is not
grounded
- Check gas availability
and pressure
- Check the integrity of
the gas valve and the
card
AL
07
Sensor or safety ther-
mostat intervenes
- Check the sensor or
thermostat con-
nections
- Deaerate the system
- Check the bleed valve
- Replace the sensor or
the thermostat
- Check that the pump
impeller is not blocked
AL
08
Fault in the flame de-
tection circuit
- Check the integrity
of the electrode and
check that it is not
grounded
- Check gas availability
and pressure
- Check the integrity of
the gas valve and the
card
AL
09
No water circulating in
the system
- Check the rotation
of the system pump
impeller
- Check the electrical
connections
- Replace the pump
AL
11
Gas valve modulator
disconnected
- Check the electrical
connection
AL
12
Incorrect configuration
of the open /sealed
chamber
- Set the parameter tS
0.4 (Combustion confi-
guration) to 0
AL
15
Fan check cable discon-
nected
- Check the connection
cable between the fan
and the board
AL
17
Fault regarding maxi-
mum deviation between
the 2 NTC heating
sensors
- Replace the dual
sensor
AL
28
Maximum number of
consecutive releases
reached
- Contact the Technical
Assistance Centre
AL
37
Fault due to low network
voltage.
- Check with tester
- Contact network provi-
der (ENEL)
AL
40
Incorrect network fre-
quency detected
- Contact network provi-
der (ENEL)
AL
41
Flame loss more than 6
consecutive times
- Check the detection
electrode
- Check the gas supply
(open valve)
- Check mains gas
pressure
AL
42
Button fault
- Check that buttons are
working
Type
No.
Fault
Solution
AL
74
Fault in the 2nd element
of the delivery sensor
- Replace the sensor
AL
81
Block due to combustion
during start-up
- Check for blockage in
chimney
- Bleed the air from the
gas circuit
AL
83
Irregular combustion
(temporary error)
- Check for blockage in
chimney
AL
96
Block due to clogging in
smoke outlet
- Check for blockage in
chimney
-
-
Frequent relief valve
intervention
- Check circuit pressure
- Check expansion
vessel
-
-
Limited production of
domestic hot water
- Check the diverter
valve
- Check that plate heat
exchanger is clean
- Check domestic hot
water circuit valve
EN
Содержание BRAVA One HE 25
Страница 27: ...27 ES ...
Страница 53: ...53 PT ...
Страница 79: ...79 EN ...
Страница 105: ...105 RU ...
Страница 106: ...106 ...
Страница 107: ...107 ...