90
EN
4.5
Unscheduled maintenance
If replacing the
electronic board
, the user MUST set the
parameters as indicated in the table and in the sequence shown.
Type No. Description
Setting for
Brava
One HE ErP
24 25 30 35 40
tS
0.1 Index showing boiler power in kW
0 = 24; 1 = 25; 2 = 30; 3 = 35; 4 = 40
0 1 2 3 4
tS
0.2
Hydraulic configuration
0 = rapid
1 = storage tank with thermostat or
heating only
2 = hot water tank with sensor
3 = bithermic
4=instant with solar power input
5 = open vent
0
tS
0.3 Gas Type Configuration
0 = G20; 1 = G31; 2 = G230
0 or 1 or 2
To enter "Parameter setting and display" refer to the indications
provided in the specific section.
Once the parameters in the table have been set, you must carry
out the entire phase of "Automatic self-calibrating procedure"
described in the specific section.
If the
gas valve
and/or the
ignition/detection electrode
, and/or the
burner
, and/or the
fan
are replaced, the user must still carry
out the entire phase of "Automatic self-calibrating procedure"
described in the specific section.
4.6
Malfunction codes and possible solutions
LIST OF MALFUNCTION/FAULT ALARMS
Type
No. Fault
Solution
AL
01 Smoke thermostat
- Contact the Technical
Assistance Centre
AL
02 Low water pressure in
system
- Restore pressure
- Check for any leaks in the
system
AL
04
Domestic hot water
sensor fault (return
sensor fault for T
models)
- Check connections
- Check the sensor is
working
AL
05 Delivery sensor fault
- Check connections
- Check the sensor is
working
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
thermostat intervenes
- Check the sensor or
thermostat connections
- 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
detection circuit
- Check the integrity of the
electrode and check that it
is not grounded
- Check the integrity of the
gas valve and the card
Type
No. Fault
Solution
AL
09 No water circulating in
the system
- Check the rotation of the
pump rotor
- Check the electrical
connections
- Replace the pump
AL
10 Auxiliary sensor fault
- Check the hydraulic
configuration using "tS
0.2"
- Check the electrical
connection
AL
11 Gas valve modulator
disconnected
- Check the electrical
connection
AL
12 Domestic hot water
sensor fault in tank mode
- Set the parameter
tS 0.4 (Combustion
configuration) to 0
AL
13 Smoke probe intervention
- Check the sensor is
working
- Replace the smoke
probe
AL
14 Smoke probe fault
- Replace the smoke
probe
- Check the electrical
connection of the smoke
probe
- Contact the Technical
Assistance Centre
AL
15 Fan check cable
disconnected
- Check the connection
cable between the fan
and the board
AL
18 Condensate level fault
- Check for any clogging
in the pipe which takes
the condensate to the
siphon
- Check that the siphon is
not clogged
AL
28
Maximum number of
consecutive resets
reached
- Wait 1 hour and try
unblocking the board
again
- Contact the Technical
Assistance Centre
AL
30 Return sensor fault (boiler
sensor fault for T models)
- Replace the return
probe
- Check parameters
- Contact the Technical
Assistance Centre
AL
37 Fault due to low network
voltage
- Check the voltage
- Contact your network
provider
AL
40 Incorrect network
frequency detected
- Contact your network
provider
AL
41 Flame loss more than 6
consecutive times
- Check the ignition/
detection electrode
- Check the gas supply
(open valve)
- Check mains gas
pressure
AL
42 Button fault
- Check that buttons are
working
AL
43 Open Therm
communication fault
- Check the OT electric
connection
AL
44 No flame valve opening
time sum anomaly
- Check for the presence
of water hammer on the
hot water system and, if
present, mount a water
hammer arrestor
- Check for any abnormal
requests on the room
thermostat
- Contact the Technical
Assistance Centre
AL
56
Lock for
∆T
delivery/
return over max limit
(open vent)
- Contact the Technical
Assistance Centre
AL
57 Lock for flow temperature
(FT) check (open vent)
- Contact the Technical
Assistance Centre
AL
62 Self-calibrating procedure
is required
- Carry out the self-
calibrating procedure
(see the specific section)
Summary of Contents for BRAVA ONE HE ErP
Page 130: ...130 ...
Page 131: ...131 ...
